Question

我在生成多个按钮并添加一些属性时遇到问题。我试图在屏幕上显示100个小按钮，每当我点击其中一个按钮时，它应该将其文本更改为＆＃34; X＆＃34;。

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.game_layout);
    GridLayout buttLayout = (GridLayout) findViewById(R.id.buttLayout);

    for (int i = 1; i < 100; i++) {
        LinearLayout.LayoutParams parameters = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.WRAP_CONTENT,
                LinearLayout.LayoutParams.WRAP_CONTENT
        );
        final Button bet = new Button(this);
        bet.setHeight(5);
        bet.setWidth(5);
        bet.setText("");
        bet.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                bet.setText("X");
            }
        });
        buttLayout.addView(bet, parameters);
    }
}

和XML

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">

<GridLayout
    android:layout_width="match_parent"
    android:layout_height="400dp"
    android:orientation="horizontal"
    android:gravity="left"
    android:id="@+id/buttLayout"
    android:columnCount="10"
    android:rowCount="10">
    </GridLayout>
 </LinearLayout>

我非常确定这是一种更好的方法，但我刚刚开始使用Android / Java进行编程，而且无法找到更好的方法。任何帮助，将不胜感激。感谢

Answer 1

您只需要在循环中设置按钮

OnClickListener OnButtonClick = new OnButtonClick();

GridLayout buttLayout = (GridLayout) findViewById(R.id.buttLayout);
LinearLayout.LayoutParams parameters = new LinearLayout.LayoutParams(
            LinearLayout.LayoutParams.WRAP_CONTENT,
            LinearLayout.LayoutParams.WRAP_CONTENT
    );

for (int i = 1; i < 100; i++) {

    final Button bet = new Button(this);
    bet.setHeight(5);
    bet.setWidth(5);
    bet.setText("");
    bet.setOnClickListener(OnButtonClick);
    buttLayout.addView(bet, parameters);

    }

}

//点击所有按钮的监听器

public class OnButtonClick implements View.OnItemClickListener{

    public void onClick(View v) {
            bet.setText("X");
        }

}

在Android中生成按钮

1 个答案: