Android

Google Play에서 앱을 설치하려고합니다. Google Play 스토어 URL을 열면 Google Play가 열리고 뒤로 버튼을 누르면 활동이 재개된다는 것을 이해할 수 있습니다.

Intent marketIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(appURL));
marketIntent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY | Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
startActivity(marketIntent);

활동으로 돌아갈 때 onResume()앱이 설치되었는지 확인하기 위해 이것을 호출하려고했지만 오류가 발생합니다.

@Override
protected void onResume() {
    super.onResume();
    boolean installed = false;
    while (!installed) {
        installed  =   appInstalledOrNot(APPPACKAGE);
        if (installed) {
             Toast.makeText(this, "App installed", Toast.LENGTH_SHORT).show();
        }
    }
}

private boolean appInstalledOrNot(String uri) {
  PackageManager pm = getPackageManager();
  boolean app_installed = false;
  try {
      pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
      app_installed = true;
  }
  catch (PackageManager.NameNotFoundException e) {
      app_installed = false;
  }
  return app_installed ;
}

오류는 다음과 같습니다.

E / AndroidRuntime (796) : java.lang.RuntimeException : 활동을 시작할 수 없음 ComponentInfo {com.example.appinstaller / com.example.appinstaller.MainActivity} : android.content.ActivityNotFoundException : 의도를 처리 할 활동이 없습니다. {act = android .intent.action.VIEW dat = market : // details? id = com.package.name flg = 0x40080000}

나는 활동이라고 생각한다 onPause(). 그것을 구현하는 더 좋은 방법이 있습니까? 앱 설치가 완료되었는지 확인하려고합니다.

답변

private boolean isPackageInstalled(String packageName, PackageManager packageManager) {
    try {
        packageManager.getPackageInfo(packageName, 0);
        return true;
    } catch (PackageManager.NameNotFoundException e) {
        return false;
    }
}

public void someMethod() {
    // ...

    PackageManager pm = context.getPackageManager();
    boolean isInstalled = isPackageInstalled("com.somepackage.name", pm);

    // ...
}

public static boolean isPackageInstalled(String packageName, PackageManager packageManager) {
    try {
        return packageManager.getApplicationInfo(packageName, 0).enabled;
    }
    catch (PackageManager.NameNotFoundException e) {
        return false;
    }
}

boolean isInstalled = Utils.isPackageInstalled("com.package.name", context.getPackageManager())

public static boolean isAvailable(Context ctx, Intent intent) {
final PackageManager mgr = ctx.getPackageManager();
List<ResolveInfo> list =   mgr.queryIntentActivities(intent,PackageManager.MATCH_DEFAULT_ONLY);
return list.size() > 0;
}

private boolean isPackageInstalled(String packagename, PackageManager packageManager) {
    try {
        packageManager.getPackageGids(packagename);
        return true;
    } catch (NameNotFoundException e) {
        return false;
    }
}

Run 10000 on API 15
Exists pkg:
getPackageInfo: nanoTime = 930000000
getPackageGids: nanoTime = 350000000
Not exists pkg:
getPackageInfo: nanoTime = 420000000
getPackageGids: nanoTime = 380000000

Run 10000 on API 17
Exists pkg:
getPackageInfo: nanoTime = 2942745517
getPackageGids: nanoTime = 2443716170
Not exists pkg:
getPackageInfo: nanoTime = 2467565849
getPackageGids: nanoTime = 2479833890

Run 10000 on API 22
Exists pkg:
getPackageInfo: nanoTime = 4596551615
getPackageGids: nanoTime = 1864970154
Not exists pkg:
getPackageInfo: nanoTime = 3830033616
getPackageGids: nanoTime = 3789230769

Run 10000 on API 25
Exists pkg:
getPackageInfo: nanoTime = 3436647394
getPackageGids: nanoTime = 2876970397
Not exists pkg:
getPackageInfo: nanoTime = 3252946114
getPackageGids: nanoTime = 3117544269

    private boolean isAppExist() {

    PackageManager pm = getPackageManager();
    try {
        PackageInfo info = pm.getPackageInfo("com.facebook.katana", PackageManager.GET_META_DATA);
    } catch (PackageManager.NameNotFoundException e) {
        return false;
    }
    return true;
}




if (isFacebookExist()) {showToast(" Facebook is  install.");}
     else {showToast(" Facebook is not install.");}

isFakeGPSInstalled = Utils.isPackageInstalled(Utils.PACKAGE_ID_FAKE_GPS, this.getPackageManager());

  public static boolean isPackageInstalled(String packageName, PackageManager packageManager) {
    boolean found = true;
    try {
      packageManager.getPackageInfo(packageName, 0);
    } catch (PackageManager.NameNotFoundException e) {
      found = false;
    }

    return found;
  }

val intent = Intent(Intent.ACTION_VIEW)
intent.data = uri
intent.setPackage("com.example.packageofapp")

fun isInstalled(intent:Intent) :Boolean{
    val list = context.packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
    return list.isNotEmpty()
}