Question

对不起，如果这太基础了。我创建了一个扩展Button的新类：

public class MyButton extends Button {
    public static final int STATUS_OFF = 0;
    public static final int STATUS_PLAY1 = 1;
    public static final int STATUS_PLAY2 = 2;
    public static final int STATUS_PLAY3 = 3;

    public int status;

    private Context ctx;

    public MyButton(Context context) {
        super(context);

        ctx = context;
        status = STATUS_OFF;
        super.setBackgroundResource(R.drawable.sound_button_off);
    }

    private void click() {
        switch (status) {
            case STATUS_OFF:
                status = STATUS_PLAY1;
                break;
            case STATUS_PLAY1:
                status = STATUS_PLAY2;
                break;
            case STATUS_PLAY2:
                status = STATUS_OFF;
                break;
            case STATUS_PLAY3:
                break;
        }
        // OTHER THINGS TO DO
    }
}

在我的主要活动中：

public class MyActivity extends Activity {
    private static final int HORIZ = 16;
    private MyButton[] b = new MyButton[HORIZ];

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_rhythm);

            createButtons();
    }

    private void createButtons() {
    LinearLayout layout = (LinearLayout)findViewById(R.id.layout_main_linear);
    for (int w=0; w<HORIZ; w++) {
        b[w] = new MyButton(MyActivity.this);
        LinearLayout.LayoutParams p = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
        layout.addView(b[w], p);
        b[w].setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {

                // HELP ME HERE
            // WHEN CLICKING THIS BUTTON, IT AUTOMATICALLY SHOULD RUN the private method click();
            // IT IS PRIVATE AND SHOULD NOT BE RUN FROM HERE, BUT AUTOMATICALLY EACH TIME THE BUTTON IS CLICKED.

            }
        });
    }
    }
}

当我从主类中调用setOnClickListener（）时，如何自动调用click（）方法？换句话说，此按钮应该像任何其他按钮一样，但在单击时执行更多操作。感谢。

Answer 1

https://github.com/johannilsson/android-actionbar/

和

这是选择器的代码：这对你有用，命名这个文件并把它放在xml drawable文件夹中，用这个文件名设置你的按钮背景....

  <?xml version="1.0" encoding="utf-8"?>

  <selector xmlns:android="http://schemas.android.com/apk/res/android">

      <item android:state_focused="true" android:state_pressed="false" android:drawable="@drawable/focused" />

      <item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/focusedpressed" />

      <item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/pressed" />

      <item android:drawable="@drawable/defaultbutton" />

  </selector>

创建自定义按钮

1 个答案: