Android安装应用和跳转(WhatsApp)应用简单记录
http://blog.csdn.net/qq_27512671/article/details/70224978
安装应用代码 7.0上
首先在AndroidManifest.xml文件,activity同级节点注册provider:
将apk文件下载到此路径:
String cachePath = (
getExternalFilesDir(“upgrade_apk”) +
File.separator +
getPackageName() +
“.apk”);
在res目录xml文件夹下创建名为file_paths的文件:upgrade_apk代表上面保存路径的文件夹名称,可随意更改,相同即可。
最好使用下面的,代表意思应该是任何目录下都可以访问
/** 安装 apk 文件
*/public void installApk(File apkFile) {Intent installApkIntent = new Intent();installApkIntent.setAction(Intent.ACTION_VIEW);installApkIntent.addCategory(Intent.CATEGORY_DEFAULT);installApkIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);if (Build.VERSION.SDK_INT > Build.VERSION_CODES.M) {installApkIntent.setDataAndType(FileProvider.getUriForFile(getApplicationContext(), "com.apkinstall.demo.file_provider", apkFile), "application/vnd.android.package-archive");installApkIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);} else {installApkIntent.setDataAndType(Uri.fromFile(apkFile), "application/vnd.android.package-archive");}if (getPackageManager().queryIntentActivities(installApkIntent, 0).size() > 0) {startActivity(installApkIntent);}}
一般跳转别的应用代码示例:
if (APPUtils.isAppInstall(mContext, "com.whatsapp")) { //判断是否装了whatsAPPIntent sendIntent = new Intent();sendIntent.setAction(Intent.ACTION_SEND);sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send.");sendIntent.setType("text/plain");sendIntent.setPackage("com.whatsapp");//区别别的应用包名mContext.startActivity(sendIntent);// Uri uri = Uri.parse("smsto:" + phoneNumber); //指定打开phoneNumber发送信息页面// Intent intent = new Intent(Intent.ACTION_SENDTO, uri);// intent.setPackage("com.whatsapp");// mContext.startActivity(intent);}else {ToastUtils.showToast("你还没安装whatsAPP");}
public static boolean isAppInstall(Context context,String appName) {PackageInfo packageInfo = null ;try {packageInfo = context.getPackageManager().getPackageInfo(appName, 0);} catch (PackageManager.NameNotFoundException e) {e.printStackTrace();}return packageInfo==null?false:true;}
跳转到别的应用的指定的Activity
try { PackageInfo packageInfo=getPackageManager().getPackageInfo("com.anqiansong.customview", 0); if(packageInfo==null) {return;}ComponentName comp = new ComponentName("com.anqiansong.customview","com.anqiansong.customview.MainActivity"); Intent intent=new Intent(); intent.setComponent(comp); intent.setAction("android.intent.action.VIEW"); startActivity(intent); } catch (NameNotFoundException e) { //没有安装该程序 Intent intent = new Intent(Intent.ACTION_VIEW); File apk=copyApkFromAssets("CustomView.apk"); intent.setDataAndType(Uri.fromFile(apk), "application/vnd.android.package-archive"); MainActivity.this.startActivity(intent); }
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