Android桌面快捷方式的设置(二)

MainActivity如下:

package cn.testshortcut;

import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.database.Cursor;
/**
 * Demo描述:
 * 桌面快捷方式的设置
 * 
 * 备注说明:
 * 该方式只适合Android原生系统
 * 
 * 权限设置:
 * <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
 * <uses-permission android:name="com.android.launcher.permission.UNINSTALL_SHORTCUT" />
 */
public class MainActivity extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		addShortcutToDesktop(MainActivity.this);
	}
	
	public static void addShortcutToDesktop(Context context) {
		if (!isShortcutExist(context)) {
			Intent shortcutIntent = new Intent("com.android.launcher.action.INSTALL_SHORTCUT");
			shortcutIntent.putExtra("duplicate", false);
			shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME,context.getString(R.string.app_name));
			shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
			Intent.ShortcutIconResource.fromContext(context,R.drawable.ic_launcher));
			Intent intent = new Intent(context, MainActivity.class);
			intent.setAction("android.intent.action.MAIN");
			intent.addCategory("android.intent.category.LAUNCHER");
			shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, intent);
			context.sendBroadcast(shortcutIntent);
		}
	}

	public static boolean isShortcutExist(Context context) {
		ContentResolver contentResolver = context.getContentResolver();
		String AUTHORITY = null;
		if (Build.VERSION.SDK_INT >= 8) {
			AUTHORITY = "com.android.launcher2.settings";
		} else {
			AUTHORITY = "com.android.launcher.settings";
		}
		
		String title = "";
		PackageManager packageManager = context.getPackageManager();
		try {
			title = packageManager.getApplicationLabel(
					packageManager.getApplicationInfo(context.getPackageName(), 
					PackageManager.GET_META_DATA)).toString();
		} catch (NameNotFoundException e) {
			e.printStackTrace();
		}
		
		Uri uri = Uri.parse("content://" + AUTHORITY + "/favorites?notify=true");
		Cursor cursor = contentResolver.query(uri, null,"title=?", new String[] { title },null);
		if (cursor != null && cursor.getCount() > 0) {
			return true;
		}
		return false;
	}

}

main.xml如下:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
     >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="建立桌面快捷方式"
        android:layout_centerInParent="true" 
    />

</RelativeLayout>