1.ActivityLifeCycle:测试生命周期的Activity

2.CommonActivity是一个普通的Activity

3.DialogActivity是对话框型的Activity

一、Activity

1.ActivityLifeCycle.java

public class ActivityLifeCycle extends AppCompatActivity {

private static final String TAG = "ActivityLifeCycle";

@BindView(R.id.btn_task_activity)

Button mBtnTaskActivity;

@BindView(R.id.btn_dialog_activity)

Button mBtnDialogActivity;

@Override//Activity第一次创建时调用

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.ac_lifecycle);

ButterKnife.bind(this);

Log.e(TAG, "onCreate: ");

Log.e("TASK_ID", "Task id is " + getTaskId());

}

@Override//Activity可见的时候调用

protected void onStart() {

super.onStart();

Log.e(TAG, "onStart: ");

}

@Override//Activity位于栈顶，获取焦点时调用

protected void onResume() {

super.onResume();

Log.e(TAG, "onResume: ");

}

@Override//Activity移除栈顶，失去焦点时调用

protected void onPause() {

super.onPause();

Log.e(TAG, "onPause: ");

}

@Override//由停止状态变为运行状态之前调用

protected void onRestart() {

super.onRestart();

Log.e(TAG, "onRestart: ");

}

@Override//Activity不可见的时候调用

protected void onStop() {

super.onStop();

Log.e(TAG, "onStop: ");

}

@Override//Activity销毁的时候调用

protected void onDestroy() {

super.onDestroy();

Log.e(TAG, "onDestroy: ");

}

@OnClick({R.id.btn_task_activity, R.id.btn_dialog_activity})

public void onViewClicked(View view) {

switch (view.getId()) {

case R.id.btn_task_activity:

//跳转到TaskActivity

startActivity(new Intent(this, TaskActivity.class));

break;

case R.id.btn_dialog_activity:

//跳转到DialogActivity

startActivity(new Intent(this, DialogActivity.class));

break;

}

}

}

2.CommonActivity.java

public class CommonActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.ac_task);

ButterKnife.bind(this);

}

}

3.DialogActivity

public class DialogActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.ac_dialog);

}

}

二、生命周期测试结果：

1.打开：onCreate==>onStart==>onResume

E/ActivityLifeCycle: onCreate:

E/ActivityLifeCycle: onStart:

E/ActivityLifeCycle: onResume:

2.跳转普通Activity：onPause==>onStop

E/ActivityLifeCycle: onPause:

E/ActivityLifeCycle: onStop:

3.从跳转的Activity返回：onRestart==>onStart==>onResume

E/ActivityLifeCycle: onRestart:

E/ActivityLifeCycle: onStart:

E/ActivityLifeCycle: onResume:

4.跳转到对话框Activity：onPause

E/ActivityLifeCycle: onPause:

5.从对话框Activity返回：onResume

E/ActivityLifeCycle: onResume:

6.旋转屏幕(相当于关闭再开启)：onPause==>onStop==>onDestroy==>onCreate==>onStart==>onResume

E/ActivityLifeCycle: onPause:

E/ActivityLifeCycle: onStop:

E/ActivityLifeCycle: onDestroy:

E/ActivityLifeCycle: onCreate:

E/ActivityLifeCycle: onStart:

E/ActivityLifeCycle: onResume:

7.关闭：onPause==>onStop==>onDestroy

E/ActivityLifeCycle: onPause:

E/ActivityLifeCycle: onStop:

E/ActivityLifeCycle: onDestroy:

附录、布局：

1.ActivityLifeCycle布局：ac_lifecycle.xml

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent">

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginTop="16dp"

android:text="打开TaskActivity"

android:textAllCaps="false"

app:layout_constraintTop_toTopOf="parent"

tools:layout_editor_absoluteX="30dp"/>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginTop="16dp"

android:text="打开DialogActivity"

android:textAllCaps="false"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintHorizontal_bias="0.873"

app:layout_constraintStart_toStartOf="parent"

app:layout_constraintTop_toTopOf="parent"/>

2.CommonActivity布局：ac_task.xml

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent">

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginTop="16dp"

android:text="打开自己"

android:textAllCaps="false"

app:layout_constraintTop_toTopOf="parent"

tools:layout_editor_absoluteX="30dp"/>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginLeft="8dp"

android:layout_marginStart="8dp"

android:layout_marginTop="16dp"

android:text="打开别人"

app:layout_constraintStart_toEndOf="@+id/btn_start_self"

app:layout_constraintTop_toTopOf="parent"/>

3.DialogActivity布局：ac_dialog.xml

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent">

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="A01_DialogActivity"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent"

tools:layout_editor_absoluteY="233dp"

tools:ignore="MissingConstraints"/>

4.DialogActivity对话框主题

android:label="DialogActivity"

android:theme="@style/Theme.AppCompat.Light.Dialog">