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   源码介绍

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用到 android反射相关方法 实现展开通知栏示例

package com.example.com.chenchen.testexpand;

import java.lang.reflect.Method;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
	private Button button;

    @Override
    public void onCreate(Bundle savedInstanceState) {
    	
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				expandNotify() ;
			}
		});
    }
    
    private void expandNotify() {
		// TODO Auto-generated method stub
    	int currentApiVersion = android.os.Build.VERSION.SDK_INT;
		try {
			Object service = getSystemService("statusbar");
			Class<?> statusbarManager = Class
					.forName("android.app.StatusBarManager");
			Method expand = null;
			if (service != null) {
				if (currentApiVersion <= 16) {
					expand = statusbarManager.getMethod("expand");
					expand.setAccessible(true);
					expand.invoke(service);
				} else {
					expand = statusbarManager
							.getMethod("expandNotificationsPanel");
				}
				expand.setAccessible(true);
				expand.invoke(service);
			}

		} catch (Exception e) {
		}
	}

}