Android想从任意Activity退出方法

Android

想从任意activity跳出方法。

在前一个activity跳转后加上finish（）;

然后判断if（isfinish（））｛onDestroy（）;｝

代码如下：

OneTestActivity

public class OneTestActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (isFinishing()){
onDestroy();
}
setContentView(R.layout.activity_one);
findView();
initView();
}

private void findView() {

}

private void initView() {
startActivity(new Intent(OneTestActivity.this,TwoTestActivity.class));
finish();
}

@Override
protected void onDestroy() {
finish();
super.onDestroy();
}
}

TwoTestActivity

public class TwoTestActivity extends Activity {
private Button btn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_two);
findView();
initView();
}

private void findView() {
btn= (Button) findViewById(R.id.back_btn);
}

private void initView() {
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
finish();
}
});
}
}

这样 finish时直接就从第二个Activity出去了。