今Image Buttonをタップすると別のフラグメントに切り替わる仕様にしようとプログラムしています。
しかしImage Buttonを実機でタップするとアプリが停止しアプリを再起動と表示されます。
解決方法が分からなく困っています。
以下がプログラムとLog catです。
主な使用ファイル
Java-------
DayFragment
HomeFragment
ListFragment
MainActivity
MainFragment
morefragment1
Layout------
activity_main
app_bar_main
content_main
fragment_day
fragment_home
fragment_list
fragment_main
fragment_morefragment1
nav_header_main
エラーメッセージ
アプリが停止しました
アプリを再起動 (スマートフォン)
Android studio
##問題発生時のLongcat(エラーのみ)
2018-10-30 22:20:45.418 31958-31958/? E/AndroidRuntime: FATAL EXCEPTION: main Process: com.websarver.wings.android.mamaraku, PID: 31958 android.content.ActivityNotFoundException: Unable to find explicit activity class {com.websarver.wings.android.mamaraku/com.websarver.wings.android.mamaraku.morefragment1}; have you declared this activity in your AndroidManifest.xml? at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1812) at android.app.Instrumentation.execStartActivity(Instrumentation.java:1525) at android.app.Activity.startActivityForResult(Activity.java:4266) at android.support.v4.app.BaseFragmentActivityApi16.startActivityForResult(BaseFragmentActivityApi16.java:54) at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:68) at android.app.Activity.startActivityForResult(Activity.java:4224) at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:751) at android.app.Activity.startActivity(Activity.java:4563) at android.app.Activity.startActivity(Activity.java:4531) at com.websarver.wings.android.mamaraku.MainActivity.openmorefragment1(MainActivity.java:56) at com.websarver.wings.android.mamaraku.MainActivity$1.onClick(MainActivity.java:38) at android.view.View.performClick(View.java:5685) at android.view.View$PerformClick.run(View.java:22481) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:241) at android.app.ActivityThread.main(ActivityThread.java:6274) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 2018-10-30 22:20:45.457 687-788/? E/JavaDumper:FW: utils.c(256): mkdir (/data/crashdata) failed. File exists 2018-10-30 22:20:45.459 702-2192/? E/voice: voice_is_in_call_rec_stream: input stream is NULL 2018-10-30 22:20:45.460 702-2192/? E/ACDB-LOADER: Error: ACDB AudProc vol returned = -19 2018-10-30 22:20:45.466 687-788/? E/JavaDumper:FW: ramdump_framework.c(317): fp is NULL 2018-10-30 22:20:45.466 687-788/? E/JavaDumper:FW: ramdump_framework.c(498): Read-only file system 2018-10-30 22:20:45.481 702-2192/? E/ACDB-LOADER: Error: ACDB audproc returned = -19 2018-10-30 22:20:45.481 702-2192/? E/ACDB-LOADER: Error: ACDB AudProc vol returned = -19 2018-10-30 22:20:45.481 702-2192/? E/ACDB-LOADER: Error: ACDB AFE returned = -19 2018-10-30 22:20:45.586 687-788/? E/JavaDumper:FW: JavaDumper.cpp(262): Failed to remove /tmp/dropbox.txt:Unknown error -2 2018-10-30 22:20:48.664 702-2192/? E/audio_hw_primary: disable_snd_device: device ref cnt is already 0
該当のソースコード(切り替えのために追加したプログラム/全3つ)
package com.websarver.wings.android.mamaraku; import android.content.Intent; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.Snackbar; import android.view.View; import android.support.design.widget.NavigationView; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuItem; import android.widget.ImageButton; public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener { //-----------追加① private ImageButton imageButton3; ------------- @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar = findViewById(R.id.toolbar); setSupportActionBar(toolbar); //-----------追加② imageButton3 = findViewById(R.id.imageButton3); imageButton3.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { openmorefragment1(); } }); //---------- DrawerLayout drawer = findViewById(R.id.drawer_layout); ActionBarDrawerToggle toggle = new ActionBarDrawerToggle( this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close); drawer.addDrawerListener(toggle); toggle.syncState(); NavigationView navigationView = findViewById(R.id.nav_view); navigationView.setNavigationItemSelectedListener(this); } //----------------------追加③ public void openmorefragment1(){ Intent intent = new Intent(this, morefragment1.class); startActivity(intent); } //----------------- @Override public void onBackPressed() { DrawerLayout drawer = findViewById(R.id.drawer_layout); if (drawer.isDrawerOpen(GravityCompat.START)) { drawer.closeDrawer(GravityCompat.START); } else { super.onBackPressed(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } @SuppressWarnings("StatementWithEmptyBody") @Override public boolean onNavigationItemSelected(MenuItem item) { // Handle navigation view item clicks here. int id = item.getItemId(); Fragment fragment = null; Class fragmentClass = null; if (id == R.id.nav_camera) { // Handle the camera action fragmentClass = HomeFragment.class; } else if (id == R.id.nav_gallery) { fragmentClass = DayFragment.class; } else if (id == R.id.nav_slideshow) { fragmentClass = ListFragment.class; } else if (id == R.id.nav_manage) { fragmentClass = MainFragment.class; } else if (id == R.id.nav_share) { fragmentClass = MainFragment.class; } else if (id == R.id.nav_send) { fragmentClass = MainFragment.class; } try { fragment = (Fragment) fragmentClass.newInstance(); } catch (Exception e) { e.printStackTrace(); } FragmentManager fragmentManager = getSupportFragmentManager(); fragmentManager.beginTransaction().replace(R.id.flContent, fragment).commit(); DrawerLayout drawer = findViewById(R.id.drawer_layout); drawer.closeDrawer(GravityCompat.START); return true; } }
補足情報(FW/ツールのバージョンなど)
Android Studio 3.2.1
API:19(Android 4.4)
Android 7.1.1
Windows 10
ご不明な点がありましたらお知らせください。
よろしくお願いします。
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2018/10/30 14:31
2018/10/30 16:13
2018/10/30 21:29