| 知乎专栏 |
package cn.netkiller.album;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
public class HotelActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hotel);
TextView hotelClose = (TextView) findViewById(R.id.hotelClose);
hotelClose.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
}
}
AndroidManifest.xml 中 activity 添加 android:launchMode="singleTask"
<activity
android:name=".MainActivity"
android:exported="true"
android:launchMode="singleTask">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.HOME" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
MainActivity 中添加 onNewIntent(Intent intent)
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
if (intent != null) {
boolean isExit = intent.getBooleanExtra("QUIT", false);
if (isExit) {
this.finish();
}
}
}
调用 quit 方法即可正常退出主程序
public void quit(View v) {
Intent intent = new Intent(this, MainActivity.class);
intent.putExtra("QUIT", true);
startActivity(intent);
}