android中以自定义广播的形式销毁栈中的任意的Activity

BaseActivity.java

public abstract class BaseActivity extends Activity implements View.OnClickListener {
public Button mButton;
public Context mContext;
public TextView mTextView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_base);
mContext = this;
initView();//初始化View
baseOnCreate();
}

//初始化View
private void initView() {
mButton = (Button) findViewById(R.id.btn_goto_next);
mTextView = (TextView) findViewById(R.id.tv_text);
mButton.setOnClickListener(this);
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_goto_next:
buttonClickEvent();
break;
}
}

public abstract void baseOnCreate();

public abstract void buttonClickEvent();
}

FirstActivity.java

public class FirstActivity extends BaseActivity {
@Override
public void baseOnCreate() {
mButton.setText("Go to SecondActivity");
mTextView.setText("Hello I am FirstActivity");
mButton.setBackgroundColor(getResources().getColor(R.color.red));
mTextView.setTextColor(getResources().getColor(R.color.red));
}

@Override
public void buttonClickEvent() {
Intent intent = new Intent(mContext, SecondActivity.class);
startActivity(intent);
}
}

SecondActivity.java

public class SecondActivity extends BaseActivity {
private FinshReceiver mFinsh;

@Override
public void baseOnCreate() {
mFinsh = new FinshReceiver();
registerReceiver(mFinsh, new IntentFilter("FinishActivity"));//动态注册一个自定义的广播，Action为FinishActivity
mButton.setText("Go to ThirdActivity");
mTextView.setText("Hello I am SecondActivity");
mButton.setBackgroundColor(getResources().getColor(R.color.green));
mTextView.setTextColor(getResources().getColor(R.color.green));

}

@Override
public void buttonClickEvent() {
Intent intent = new Intent(mContext, ThirdActivity.class);
startActivity(intent);
}

@Override
protected void onDestroy() {
super.onDestroy();
unregisterReceiver(mFinsh);//注销动态注册的广播
}

//广播接收事件
private class FinshReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
finish();
}
}
}

ThirdActivity.java

public class ThirdActivity extends BaseActivity {

@Override
public void baseOnCreate() {
mButton.setText("Finish SecondActivity");
mTextView.setText("Hello I am ThirdActivity");
mButton.setBackgroundColor(getResources().getColor(R.color.blue));
mTextView.setTextColor(getResources().getColor(R.color.blue));
}

@Override
public void buttonClickEvent() {
Intent intent = new Intent("FinishActivity");
sendBroadcast(intent);//发送对应的广播
}
}