Android Open Source - android-common-utility App Util

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License

The source code is released under:

Apache License

Java Source Code

package com.xckevin.android.util;
//from   w ww. j a va2s  . c o  m
import java.util.Iterator;
import java.util.List;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;

public class AppUtil {

  /**
   * if the phone has the app named packageName
   * @param packageName
   * @return
   */
  public static boolean isPackageExisted(Context context, String packageName) {
    PackageInfo packageInfo;

    try { 
      packageInfo = context.getPackageManager().getPackageInfo(packageName, 0); 
    } catch (NameNotFoundException e) { 
      packageInfo = null; 
      e.printStackTrace(); 
    } 
    if(packageInfo == null){ 
      return false;
    }else{ 
      return true;
    }
  }

  /**
   * open another app
   * @param context
   * @param packageName
   * @throws NameNotFoundException 
   */
  public static void openApp(Context context, String packageName) throws NameNotFoundException {
    PackageInfo pi = context.getPackageManager().getPackageInfo(packageName, 0);

    Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);
    resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);
    resolveIntent.setPackage(pi.packageName);

    List<ResolveInfo> apps = context.getPackageManager().queryIntentActivities(resolveIntent, 0);

    Iterator<ResolveInfo> iterator = apps.iterator();
    while(iterator.hasNext()) {
      ResolveInfo ri = iterator.next();
      if (ri != null ) {
        packageName = ri.activityInfo.packageName;
        String className = ri.activityInfo.name;
        Intent intent = new Intent(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_LAUNCHER);
        ComponentName cn = new ComponentName(packageName, className);
        intent.setComponent(cn);
        context.startActivity(intent);
      }
    }
  }
}

Java Source Code List

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