android – onStop()没有被调用？

我正在尝试获取Activity Lifecycle的日志.我在这里面临一些奇怪的问题.

当我使用activity的主题为android：theme =“@ style / Theme.AppCompat.Light.NoActionBar并转到下一个acitivty.onPuase()和onStop()被调用.

但是,当我使用android：theme =“@ style / AppTheme时,onPause()会被调用,但onStop()不会被调用.

是否有基于活动主题的活动？

您可以参考以下代码.

Styles.xml

 <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <!-- Customize your theme here. -->
    <item name="android:windowIsTranslucent">true</item>
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

的Manifest.xml

    <activity
        android:name=".activity.TestActivity"
        android:label="@string/app_name"
        android:screenOrientation="portrait"
        android:theme="@style/AppTheme">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity
        android:name=".activity.TestTwoActivity"
        android:label="@string/app_name"
        android:screenOrientation="portrait"
        android:theme="@style/AppTheme" />

测试活动

public class TestActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_test);
    Logger.debug("TestActivity onCreate");
    findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(TestActivity.this, TestTwoActivity.class);
            startActivity(intent);


        }
    });
}

@Override
protected void onStart() {
    Logger.debug("TestActivity onStart");
    super.onStart();
}

@Override
protected void onRestart() {
    Logger.debug("TestActivity onRestart");
    super.onRestart();
}

@Override
protected void onResume() {
    Logger.debug("TestActivity onResume");
    super.onResume();
}

@Override
protected void onPause() {
    Logger.debug("TestActivity onPause");
    super.onPause();
}

@Override
protected void onStop() {
    Logger.debug("TestActivity onStop");
    super.onStop();
}

@Override
protected void onDestroy() {
    Logger.debug("TestActivity onDestroy");
    super.onDestroy();
}

}

activity_test

<?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:background="@android:color/white"
android:orientation="vertical">

<Button
    android:id="@+id/btn"
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:background="@color/bg_blue"
    android:text="button" />

`activity_test_two

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/white">

<Button
    android:id="@+id/btn"
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:layout_centerInParent="true"
    android:background="@color/bg_blue"
    android:text="button" />

日志：

 TestActivity onCreate
 TestActivity onStart
 TestActivity onResume
     activity Button Click
 TestActivity onPause
 TestTwoActivity onCreate
 TestTwoActivity onStart
 TestTwoActivity onResume
    Backpress
 TestTwoActivity onPause
 TestActivity onResume
 TestTwoActivity onStop
 TestTwoActivity onDestroy

解决方法:

您的第二个活动是半透明的 – 这意味着,第一个活动仍然可见,因此不会调用onStop().这与显示对话框非常相似 – 调用onPause()因为活动不在前台,但仍然对用户可见 – 因此没有onStop()调用

标签：android,android-activity,activity-lifecycle
来源： https://codeday.me/bug/20190608/1197642.html