質問編集履歴
2
adMobが取り外せたので外しました
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@@ -6,8 +6,7 @@
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・再度frag1に切り替えたとき、frag1_Worldが表示された状態にする。(画面保持)
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```MainActivity.java
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```MainActivity.javaimport android.os.Build;
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import android.os.Bundle;
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import android.support.annotation.RequiresApi;
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import android.support.v4.app.FragmentManager;
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@@ -16,9 +15,6 @@
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import android.util.Log;
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import android.widget.TabHost.TabSpec;
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import com.google.android.gms.ads.AdRequest;
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import com.google.android.gms.ads.AdView;
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import com.google.android.gms.ads.MobileAds;
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public class MainActivity extends AppCompatActivity {
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@@ -59,21 +55,12 @@
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mTabHost.addTab(mTabSpec2, Fragment2.class, args);
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Log.d("debug","add");
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-
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// Test App ID
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MobileAds.initialize(this,
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"ca-app-pub-3940256099942544~3347511713");
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-
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AdView adView = findViewById(R.id.adView);
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AdRequest adRequest = new AdRequest.Builder().build();
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adView.loadAd(adRequest);
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}
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}
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}
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```
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75
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```activity_main.xml
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<!-- タブ全体の定義 -->
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63
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```activity_main.xml<!-- タブ全体の定義 -->
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<android.support.v4.app.FragmentTabHost xmlns:android="http://schemas.android.com/apk/res/android"
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android:id="@android:id/tabhost"
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xmlns:ads="http://schemas.android.com/apk/res-auto"
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@@ -110,14 +97,6 @@
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110
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android:layout_marginLeft="10dp"
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android:layout_marginRight="10dp"
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/>
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<com.google.android.gms.ads.AdView
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android:id="@+id/adView"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_gravity="center"
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ads:adSize="BANNER"
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ads:adUnitId="ca-app-pub-3940256099942544/6300978111">
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</com.google.android.gms.ads.AdView>
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</LinearLayout>
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</android.support.v4.app.FragmentTabHost>
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```
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1
追記
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body
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@@ -1,21 +1,12 @@
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1
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###
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1
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### 実現したいこと
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2
2
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Android Studioを使ってAndroidアプリを作成しています。
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3
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-
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3
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このプログラムで、下記動作を実現したいです。
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・frag1でボタンを押す(textView:frag1_World)
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・
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・frag2に切り替える
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・FragmentB
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6
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-
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・再度frag1に切り替えたとき、frag1_Worldが表示された状態にする。(画面保持)
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7
7
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8
8
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9
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### 発生している問題・エラーメッセージ
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FragmentAとFragmentBをタブで切り替えた際に、
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いままでの入力情報などが消えてしまうため、show/hideで切り替えたいです。
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どのように編集したら良いでしょうか。
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-
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```MainActivity.java
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-
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import android.media.AudioAttributes;
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import android.media.SoundPool;
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import android.os.Build;
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import android.os.Bundle;
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import android.support.annotation.RequiresApi;
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@@ -23,10 +14,8 @@
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import android.support.v4.app.FragmentTabHost;
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import android.support.v7.app.AppCompatActivity;
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import android.util.Log;
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import android.view.Menu;
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import android.widget.TabHost.TabSpec;
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import com.google.android.gms.ads.AdListener;
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import com.google.android.gms.ads.AdRequest;
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import com.google.android.gms.ads.AdView;
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import com.google.android.gms.ads.MobileAds;
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@@ -34,36 +23,290 @@
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public class MainActivity extends AppCompatActivity {
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private FragmentTabHost mTabHost;
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37
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-
private String[] TabTag = { "
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private String[] TabTag = { "Dice", "Character"};
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@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
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@Override
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40
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protected void onCreate(Bundle savedInstanceState) {
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41
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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-
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if (savedInstanceState == null) {
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FragmentManager mFragmentManager = getSupportFragmentManager();
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-
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//FragmentManagerの取得
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-
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FragmentManager mFragmentManager = getSupportFragmentManager();
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-
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// FragmentTabHostを取得する
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-
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40
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mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
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//String型の引数には任意のidを渡す
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-
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// Context、FragmentManager、タブ選択時にFragmentを挿入するリソースID
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-
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mTabHost.setup(this, getSupportFragmentManager(), R.id.content);
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TabSpec mTabSpec2 = mTabHost.newTabSpec("tab2");
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44
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//String型の引数には任意のidを渡す
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//今回は2つのFragmentをFragmentTabHostから切り替えるため、2つのTabSpecを用意する
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59
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TabSpec mTabSpec1 = mTabHost.newTabSpec("tab1");
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60
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-
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TabSpec mTabSpec2 = mTabHost.newTabSpec("tab2");
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-
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50
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//Tab上に表示する文字を渡す
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63
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-
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mTabSpec1.setIndicator("frag1");
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mTabSpec2.setIndicator("frag2");
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Bundle args = new Bundle();
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args.putString("string", "message");
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-
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mTabHost.addTab(mTabSpec1, Fragment1.class, args);
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mTabHost.addTab(mTabSpec2, Fragment2.class, args);
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Log.d("debug","add");
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63
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// Test App ID
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64
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MobileAds.initialize(this,
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"ca-app-pub-3940256099942544~3347511713");
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66
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+
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67
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AdView adView = findViewById(R.id.adView);
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AdRequest adRequest = new AdRequest.Builder().build();
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adView.loadAd(adRequest);
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}
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}
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}
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```
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75
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+
```activity_main.xml
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76
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<!-- タブ全体の定義 -->
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77
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<android.support.v4.app.FragmentTabHost xmlns:android="http://schemas.android.com/apk/res/android"
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android:id="@android:id/tabhost"
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xmlns:ads="http://schemas.android.com/apk/res-auto"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:background="@color/background"
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>
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<!-- -->
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<LinearLayout
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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88
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+
android:orientation="vertical" >
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89
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<!-- タブパネル操作のためのTabWidgetを配置 -->
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90
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<TabWidget
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android:id="@android:id/tabs"
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92
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+
android:layout_width="match_parent"
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93
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android:layout_height="wrap_content"
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94
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android:layout_weight="0"
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95
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android:orientation="horizontal" />
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96
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+
<!-- タブパネルを束ねるためのコンテナーを配置 -->
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97
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+
<FrameLayout
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android:id="@android:id/tabcontent"
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android:layout_width="0dp"
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android:layout_height="0dp"
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101
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android:layout_weight="0" />
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102
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<!-- タブが押された時に表示するコンテンツ領域(Fragment) -->
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103
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+
<FrameLayout
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android:id="@+id/content"
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105
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android:layout_width="match_parent"
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106
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android:layout_height="0dp"
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107
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android:layout_weight="1"
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108
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android:layout_marginTop="20dp"
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109
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android:layout_marginBottom="20dp"
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110
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+
android:layout_marginLeft="10dp"
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111
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+
android:layout_marginRight="10dp"
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112
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+
/>
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113
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+
<com.google.android.gms.ads.AdView
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android:id="@+id/adView"
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115
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android:layout_width="wrap_content"
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116
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+
android:layout_height="wrap_content"
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117
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+
android:layout_gravity="center"
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118
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ads:adSize="BANNER"
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119
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ads:adUnitId="ca-app-pub-3940256099942544/6300978111">
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120
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+
</com.google.android.gms.ads.AdView>
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121
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+
</LinearLayout>
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122
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+
</android.support.v4.app.FragmentTabHost>
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123
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+
```
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124
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+
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125
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+
```Fragment1.java
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126
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import android.support.annotation.Nullable;
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127
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+
import android.support.v4.app.Fragment;
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128
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+
import android.os.Bundle;
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129
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import android.util.Log;
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130
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+
import android.view.LayoutInflater;
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131
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+
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132
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+
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133
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public class Fragment1 extends Fragment {
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134
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+
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135
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+
TextView textView1;
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136
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Button button1;
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137
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+
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138
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public void onCreate(Bundle savedInstanceState) {
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139
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+
super.onCreate(savedInstanceState);
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140
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+
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141
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+
// 初期設定 --------------------------------------------------------------------------------
|
|
142
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+
//addTabの際にBundleを渡す場合は、Bundleから値を取得する
|
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143
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+
//渡さない(nullを渡している)場合は、実装しなくてよい。そうでないとgetString("string")時にエラーが発生する
|
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144
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+
Bundle args = getArguments();
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145
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+
String str = args.getString("string");
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146
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+
//-------------------------------------------------------------------------------
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147
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+
}
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148
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+
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149
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@Nullable
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150
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+
@Override
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151
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+
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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152
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+
final View v = inflater.inflate(R.layout.frag1, null);
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153
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+
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154
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+
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155
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+
Log.d("debug", "frag1_OnCreateView");
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156
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+
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157
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+
// text ------------------------------------------------------------------------------------
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158
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textView1 = v.findViewById(R.id.text_view1);
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159
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+
textView1.setText("Frag1_Hello");
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160
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+
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161
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button1 = v.findViewById(R.id.button1);
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162
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button1.setOnClickListener(new View.OnClickListener() {
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163
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@Override
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164
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public void onClick(View v) {
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165
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textView1.setText("frag1_World");
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166
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+
}
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167
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+
});
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168
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+
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169
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+
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170
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return v;
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}
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173
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@Override
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174
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+
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
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175
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+
super.onViewCreated(view, savedInstanceState);
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176
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+
Log.d("test", "createFragment1");
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177
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+
}
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178
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+
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179
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+
@Override
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180
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+
public void onSaveInstanceState(Bundle outState) {
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181
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+
String i = "Hi";
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182
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+
outState.putString("editText", i);
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183
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+
super.onSaveInstanceState(outState);
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184
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+
}
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185
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+
@Override
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|
186
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+
public void onDestroyView() {
|
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187
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+
Log.d("test", "destroyFragment1");
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188
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+
super.onDestroyView();
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189
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+
}
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190
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+
|
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191
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+
}
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192
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+
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193
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+
|
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194
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+
```
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195
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+
|
|
196
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+
```frag1.xml
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197
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+
<?xml version="1.0" encoding="utf-8"?>
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|
198
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+
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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199
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+
xmlns:tools="http://schemas.android.com/tools"
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200
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+
android:id="@+id/activity_main"
|
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201
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+
android:layout_width="match_parent"
|
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202
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+
android:layout_height="match_parent"
|
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203
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+
android:orientation="vertical"
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204
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+
tools:context=".MainActivity">
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205
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+
|
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206
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+
<TextView
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207
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+
android:id="@+id/text_view1"
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208
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+
android:layout_width="wrap_content"
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209
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+
android:layout_height="wrap_content"
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210
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+
android:textSize="30sp"
|
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211
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+
/>
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212
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+
|
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213
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+
<Button
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214
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+
android:id="@+id/button1"
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215
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+
android:layout_width="wrap_content"
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216
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+
android:layout_height="wrap_content"
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217
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+
android:layout_margin="20dp"
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218
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+
android:text="tab1"
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219
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+
/>
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|
220
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+
|
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221
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+
</LinearLayout>
|
|
222
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+
```
|
|
223
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+
```Fragment2.java
|
|
224
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+
import android.support.annotation.Nullable;
|
|
225
|
+
import android.support.v4.app.Fragment;
|
|
226
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+
import android.os.Bundle;
|
|
227
|
+
import android.util.Log;
|
|
228
|
+
import android.view.LayoutInflater;
|
|
229
|
+
|
|
230
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+
/*
|
|
231
|
+
* タブがクリックされた時に表示するFragment
|
|
232
|
+
*/
|
|
233
|
+
public class Fragment2 extends Fragment {
|
|
234
|
+
|
|
235
|
+
TextView textView2;
|
|
236
|
+
Button button2;
|
|
237
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+
|
|
238
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+
|
|
239
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+
@Override
|
|
240
|
+
public void onCreate(Bundle savedInstanceState){
|
|
241
|
+
super.onCreate(savedInstanceState);
|
|
242
|
+
|
|
243
|
+
//addTabの際にBundleを渡す場合は、Bundleから値を取得する
|
|
244
|
+
//渡さない(nullを渡している)場合は、実装しなくてよい。そうでないとgetString("string")時にエラーが発生する
|
|
245
|
+
Bundle args = getArguments();
|
|
246
|
+
String str = args.getString("string");
|
|
247
|
+
}
|
|
248
|
+
|
|
249
|
+
@Nullable
|
|
250
|
+
@Override
|
|
251
|
+
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
|
|
252
|
+
View v = inflater.inflate(R.layout.frag2, null);
|
|
253
|
+
|
|
254
|
+
Log.d("debug", "frag2_OnCreateView");
|
|
255
|
+
|
|
256
|
+
// text ------------------------------------------------------------------------------------
|
|
257
|
+
textView2 = v.findViewById(R.id.text_view2);
|
|
258
|
+
textView2.setText("frag2_Hello");
|
|
259
|
+
|
|
260
|
+
button2 = v.findViewById(R.id.button2);
|
|
261
|
+
button2.setOnClickListener(new View.OnClickListener() {
|
|
262
|
+
@Override
|
|
263
|
+
public void onClick(View v) {
|
|
264
|
+
textView2.setText("frag2_World");
|
|
265
|
+
}
|
|
266
|
+
});
|
|
267
|
+
return v;
|
|
268
|
+
}
|
|
269
|
+
@Override
|
|
270
|
+
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
|
|
271
|
+
super.onViewCreated(view, savedInstanceState);
|
|
272
|
+
Log.d("test", "createFragment2");
|
|
273
|
+
}
|
|
274
|
+
|
|
275
|
+
@Override
|
|
276
|
+
public void onSaveInstanceState(Bundle outState) {
|
|
277
|
+
String i = "Hi";
|
|
278
|
+
outState.putString("editText", i);
|
|
279
|
+
super.onSaveInstanceState(outState);
|
|
280
|
+
}
|
|
281
|
+
@Override
|
|
282
|
+
public void onDestroyView() {
|
|
283
|
+
Log.d("test", "destroyFragment2");
|
|
284
|
+
super.onDestroyView();
|
|
285
|
+
}
|
|
286
|
+
}
|
|
287
|
+
```
|
|
288
|
+
|
|
289
|
+
```frag2.xml
|
|
290
|
+
<?xml version="1.0" encoding="utf-8"?>
|
|
291
|
+
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
|
|
292
|
+
android:orientation="vertical"
|
|
293
|
+
android:layout_width="match_parent"
|
|
294
|
+
android:layout_height="match_parent"
|
|
295
|
+
>
|
|
296
|
+
<TextView
|
|
297
|
+
android:id="@+id/text_view2"
|
|
298
|
+
android:layout_width="wrap_content"
|
|
299
|
+
android:layout_height="wrap_content"
|
|
300
|
+
android:textSize="30sp"
|
|
301
|
+
/>
|
|
302
|
+
|
|
303
|
+
<Button
|
|
304
|
+
android:id="@+id/button2"
|
|
305
|
+
android:layout_width="wrap_content"
|
|
306
|
+
android:layout_height="wrap_content"
|
|
307
|
+
android:layout_margin="20dp"
|
|
308
|
+
android:text="tab2"
|
|
309
|
+
/>
|
|
310
|
+
|
|
311
|
+
</LinearLayout>
|
|
69
312
|
```
|