PackageManager packageManager = this.getPackageManager();
Intent intent= packageManager.getLaunchIntentForPackage("com.domain.example");
startActivity(intent);

Intent intent = new Intent();  
ComponentName comp = new ComponentName("com.tencent.mobileqq", "com.tencent.mobileqq.activity.SplashActivity");  
intent.setComponent(comp);  
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);  
startActivity(intent);

Intent intent = new Intent();  
intent.setAction(Intent.ACTION_WEB_SEARCH);  
intent.putExtra(SearchManager.QUERY,"搜索内容")  
startActivity(intent);

Uri uri = Uri.parse("https://www.baidu.com");  
Intent intent = new Intent(Intent.ACTION_VIEW,uri);  
startActivity(intent);

Uri uri = Uri.parse("geo:36.899533,66.036476");  
Intent intent = newIntent(Intent.Action_VIEW,uri);  
startActivity(intent);

Uri uri = Uri.parse("tel:10086");  
Intent intent = new Intent(Intent.ACTION_DIAL,uri);    
startActivity(intent);

Uri uri = Uri.parse("smsto:10086");     
Intent intent = new Intent(Intent.ACTION_SENDTO, uri);     
intent.putExtra("sms_body", "CXLL(Content)");     
startActivity(intent);

Uri uri = Uri.parse("mailto:123456@qq.com");  
Intent intent = new Intent(Intent.ACTION_SENDTO, uri);  
startActivity(intent);

Intent intent = new Intent(Intent.ACTION_VIEW);  
Uri uri = Uri.parse("file:///sdcard0/aLIEz.mp3");  
intent.setDataAndType(uri,"audio/mp3");  
startActivity(intent);

Intent intent = new Intent(android.provider.Settings.ACTION_SETTINGS);
startActivity(intent);

// 打开照相机
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 1);

// 取出图片
Bundle extras = intent.getExtras();
Bitmap bitmap = (Bitmap) extras.get("data");

Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
startActivityForResult(intent, 2);

Intent intent = new Intent(Media.RECORD_SOUND_ACTION);  
startActivity(intent);

String fileName = Environment.getExternalStorageDirectory() + "/Application.apk";   
Intent intent = new Intent(Intent.ACTION_VIEW);   
intent.setDataAndType(Uri.fromFile(new File(fileName)),
"application/vnd.android.package-archive");   
startActivity(intent);

Uri uri = Uri.fromParts("package", 'PackageName', null);     
Intent intent = new Intent(Intent.ACTION_DELETE, uri);     
startActivity(intent);