android activity解耦,android的activity界面跳转解耦

【一般的界面跳转方式如下】

Intent intent = new Intent();

intent.setClass(HelloworldActivity.this, NextActivity.class);// 这里强引用了NextActivity

HelloworldActivity.this.startActivity(intent);

【解耦的做法，利用反射的方法】

import android.app.Activity;

import android.content.Intent;

/***

* - 页面跳转器，让页面之间解耦合

* */

public class Navigator {

public static void navigatorTo(Activity from, final String toActivityName, final Intent intent){

if(from == null || toActivityName == null || intent == null){

throw new NullPointerException("from == null || toActivityName == null || intent == null");

}

Class> clazz = null;

try {

clazz = Class.forName(toActivityName);

if(clazz != null){

intent.setClass(from, clazz);

from.startActivity(intent);

}

}catch (ClassNotFoundException e){

e.printStackTrace();

}

}

public static final class ActivityType{

public static final String ACTIVITY_SECOND = "com.example.administrator.openandroid.SecondActivity";

}

}

public class MainActivity extends AppCompatActivity {

private Activity activity;

private final String TAG = "MainActivity";

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

activity = this;

findViewById(R.id.text).setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

Log.i(TAG, "--onClick--");

Navigator.navigatorTo(activity, Navigator.ActivityType.ACTIVITY_SECOND, new Intent());

}

});

}

}

【源码这里下载】

https://github.com/zgxzgxzg/openSource.git