ActivityCycle day6.2

最新推荐文章于 2025-09-06 09:26:50 发布

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最新推荐文章于 2025-09-06 09:26:50 发布

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文章标签： python

原文链接：https://my.oschina.net/u/2542711/blog/600917

本文详细介绍了 Android 开发中 Activity 的七大生命周期方法，并通过 MainActivity 和 NextActivity 的实例代码展示了如何使用日志来跟踪 Activity 的状态变化。

2019独角兽企业重金招聘Python工程师标准>>>

ActivityCycle day6.2

Activity 7 大生命周期

//通过日志猫观察 activity 的生命周期
public class MainActivity extends Activity {

private static final String Tag = "MainActivity";

private TextView textview;
@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  Log.i(Tag,"MainActivity : onCreate");
}

@Override
protected void onStart() {
  super.onStart();
  Log.i(Tag,"MainActivity : onStart");
}
@Override
protected void onResume() {
  super.onResume();
  Log.i(Tag,"MainActivity : onResume");
}
@Override
protected void onPause() {
  super.onPause();
  Log.i(Tag,"MainActivity : onPause");
}
@Override
protected void onStop() {
  super.onStop();
  Log.i(Tag,"MainActivity : onStop");
}
@Override
protected void onRestart() {
  super.onRestart();
  Log.i(Tag,"MainActivity : onRestart");
}
@Override
protected void onDestroy() {
  super.onDestroy();
  Log.i(Tag,"MainActivity : onDestroy");
}

}

---------------------

public class NextActivity extends Activity {
private static final String Tag = "MainActivity";
@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.nextactivity);
  Log.i(Tag,"NextActivity : onCreate");
}
}
@Override
protected void onStart() {
  super.onStart();
  Log.i(Tag,"NextActivity : onStart");
}
@Override
protected void onResume() {
  super.onResume();
  Log.i(Tag,"NextActivity : onResume");
}
@Override
protected void onPause() {
  super.onPause();
  Log.i(Tag,"NextActivity : onPause");
}
@Override
protected void onStop() {
  super.onStop();
  Log.i(Tag,"NextActivity : onStop");
}
@Override
protected void onRestart() {
  super.onRestart();
  Log.i(Tag,"NextActivity : onRestart");
}
@Override
protected void onDestroy() {
  super.onDestroy();
  Log.i(Tag,"NextActivity : onDestroy");
}

}