android activityA操作acticityB

android activityA操作acticityB

这个操作是指在A中可以做一些B的事情，譬如调用B的方法，或者关闭B

1、静态方法

在A中声明B的静态对象，在B中的onCraete中初始化this，当然这样做的话，在A中还要写自己的getInstance，看代码

activity A

public class StartActivity extends Activity implements OnClickListener{

public static LoadingActivity mLoadingActivity = null;

public static StartActivity getInstance(){
return  new StartActivity();
}

public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.btn1:

Intent intentLoding = new Intent(this, LoadingActivity.class);
startActivity(intentLoding);

mLoadingActivity.finish();

break;

}

}

activity B

public class LoadingActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.loading);
StartActivity.getInstance().mLoadingActivity = this;
}

}

//后续总结添加