假设有这样的场景:linearlayout里放了若干子控件,其中有一个textview,希望将textview的事件屏蔽掉,交给linearlayout处理,可以给textview设置android:clickable="false" android:longClickable="false"
这样textview就只保留了显示文字的功能,长按、点击textview和长按点击linearlayout效果一样。下面是小demo
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/layout_root"
android:background="@drawable/root_selector"
>
<TextView
android:id="@+id/textview"
android:layout_width="match_parent"
android:layout_height="100dp"
android:text="TextView"
android:gravity="center"
android:textSize="30sp"
android:textColor="#000000"
android:clickable="false"
android:longClickable="false"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="button"/>
</LinearLayout>
root_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@color/colorAccent"
android:state_pressed="true"/>
<!-- 自然状态 -->
<item android:drawable="@color/colorWhite"/>
</selector>
MainActivity.java
package com.kw.testclickable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private static final String TAG = "kwdebug";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
LinearLayout root = findViewById(R.id.layout_root);
TextView textView = findViewById(R.id.textview);
root.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d(TAG, "onClick: 点击了根布局");
}
});
root.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
Log.d(TAG, "onLongClick: 长按了根布局");
return true; // 返回true屏蔽普通点击事件
}
});
}
}