質問編集履歴
3
訂正
test
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File without changes
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test
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@@ -24,6 +24,36 @@
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<com.example.nakahara.game.MyView
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android:id="@+id/view"
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android:layout_width="0dp"
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android:layout_height="0dp"
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android:layout_marginBottom="16dp"
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android:layout_marginLeft="16dp"
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android:layout_marginRight="16dp"
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android:layout_marginTop="16dp"
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app:layout_constraintBottom_toBottomOf="parent"
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app:layout_constraintLeft_toLeftOf="parent"
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app:layout_constraintRight_toRightOf="parent"
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app:layout_constraintTop_toTopOf="parent"
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app:layout_constraintHorizontal_bias="0.0"
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app:layout_constraintVertical_bias="0.0" />
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</android.support.constraint.ConstraintLayout>
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@@ -34,13 +64,11 @@
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M
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MyView.java
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```java
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pac
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.RectF;
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import android.support.v7.app.AppCompatActivity;
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import android.
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import android.view.View;
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public class M
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public class MyView extends View {
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public MyView(Context context) {
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super(context);
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}
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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}
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protected void onDraw(Canvas canvas) {
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Paint paint = new Paint();
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paint.setColor(Color.argb(255,
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paint.setColor(Color.argb(255, 0, 0, 0));
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@@ -100,12 +122,10 @@
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}
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}
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}
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-
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```
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2
誤字
test
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File without changes
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test
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@@ -1,4 +1,4 @@
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1
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androidstudioのメイン画面で
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androidstudioのメイン画面で矩形を描写しようと思っているのですが、Design画面に表示されません。androidstudio上では、MainActivity.javaのコードの１９行目onDrawという文字の色がグレーになっており認識されません........ちなみに、エラーメッセージは出ません。
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2
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3
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1
誤字
test
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@@ -1 +1 @@
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1
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-
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1
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+
矩形（Rect）を描写
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test
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File without changes
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