Android按钮第一次和第二次点击

Question

我需要有关按钮第一次和第二次单击的帮助。 第一次单击应该发送一条短信并更改按钮背景颜色和按钮文本颜色。 第二次单击应发送其他短信并设置返回按钮背景色和文本颜色。 谢谢。

public boolean onLongClick(View v) {
    switch (v.getId()){
        case R.id.button1:
            btn1.setBackgroundColor(Color.GREEN);
            btn1.setTextColor(Color.RED);
            sendSMSMessage1();

            // On second click do other event 

            sendSMSMessage11();
            btn1.setBackgroundColor(Color.BLACK);
            btn1.setTextColor(Color.WHITE);

            break;
        case R.id.button2:
            btn2.setBackgroundColor(Color.GREEN);
            btn2.setTextColor(Color.RED);
            sendSMSMessage2();
            // On second click do other event

            sendSMSMessage22();

            btn2.setBackgroundColor(Color.BLACK);
            btn2.setTextColor(Color.WHITE);

            break;
    }
    return false;
}

xml

<Button
    android:id="@+id/button1"
    style="@style/Widget.Material3.Button.OutlinedButton"
    android:layout_width="214dp"
    android:layout_height="70dp"
    android:layout_centerHorizontal="true"
    android:layout_marginStart="123dp"
    android:layout_marginEnd="124dp"
    android:layout_marginBottom="372dp"
    android:text="START"
    android:textAlignment="center"
    android:textAppearance="@style/TextAppearance.AppCompat.Large"
    android:textColor="#ffffff"
    android:textSize="30sp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.521"
    app:layout_constraintStart_toStartOf="parent"
    app:strokeColor="#ffffff"
    app:strokeWidth="5dp" />

Answer 1

您可以通过附加标志来做到这一点。 例如

boolean wasButtonClicked = false;

button.setOnLongClickListener {
  if (wasButtonClicked) {
    //action 2
  } else {
    //action1
  }
}

Answer 2

这种方式行不通。

        case R.id.button1:
            boolean wasButtonClicked = false;
            if (wasButtonClicked) {
                btn1.setBackgroundColor(Color.GREEN);
                btn1.setTextColor(Color.RED);
                sendSMSMessage1();
            }
            else {
                btn1.setBackgroundColor(Color.BLACK);
                btn1.setTextColor(Color.WHITE);
            }
            break;

Answer 3

试试这个代码片段：

boolean buttonClicked = false; //click track for button 1
boolean buttonClicked2 = false; //click track for button 2

public boolean onLongClick(View v) {
    
    switch (v.getId()){
        case R.id.button1:
            buttonClicked = !buttonClicked;
            if(buttonClicked){
              btn1.setBackgroundColor(Color.GREEN);
              btn1.setTextColor(Color.RED);
              sendSMSMessage1();
            }else{
              sendSMSMessage11();
              btn1.setBackgroundColor(Color.BLACK);
              btn1.setTextColor(Color.WHITE);
            }
            break;
          case R.id.button2:
            buttonClicked2 = !buttonClicked2;
            //do similar stuff
            break;
    }
    return true;
}

also in your xml of your button you may need to add onClick attribute so that it handles your onClick if you have not done by your java code.

<Button
    android:id="@+id/button1"
    style="@style/Widget.Material3.Button.OutlinedButton"
    android:layout_width="214dp"
    android:layout_height="70dp"
    android:layout_centerHorizontal="true"
    android:layout_marginStart="123dp"
    android:layout_marginEnd="124dp"
    android:layout_marginBottom="372dp"
    android:text="START"
    android:textAlignment="center"
    android:textAppearance="@style/TextAppearance.AppCompat.Large"
    android:textColor="#ffffff"
    android:textSize="30sp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.521"
    app:layout_constraintStart_toStartOf="parent"
    app:strokeColor="#ffffff"
    //add your onClick android:onClick="onLongClick" //or app:onClick = "onLongClick"  
//one should work as you have mentioned on click not long click in your question
    app:strokeWidth="5dp" />

Answer 4

像魅力一样工作，非常感谢大家：

boolean buttonClicked = false; //点击按钮1的轨道 boolean buttonClicked2 = false; //点击按钮2的轨道

公共 boolean onLongClick（查看 v）{

switch (v.getId()){
    case R.id.button1:
        buttonClicked = !buttonClicked;
        if(buttonClicked){
          btn1.setBackgroundColor(Color.GREEN);
          btn1.setTextColor(Color.RED);
          sendSMSMessage1();
        }else{
          sendSMSMessage11();
          btn1.setBackgroundColor(Color.BLACK);
          btn1.setTextColor(Color.WHITE);
        }
        break;
      case R.id.button2:
        buttonClicked2 = !buttonClicked2;
        //do similar stuff
        break;
}
return true;

}