Невозможно загрузить файл .apk из задачи async

Question

Я пытаюсь загрузить apk из URL-адреса из задачи async, но он не работает и определенно .apk не загружается или частично не загружается здесь, я не знаю почему. Диалоговое окно индикатора выполнения не показывает прогресс и застряло в 0. Пожалуйста, помогите мне решить эту проблему.

Спасибо заранее!

Вот мой код:

public class MainActivity extends AppCompatActivity implements View.OnClickListener{ 

InterstitialAd mInterstitialAd; 
ProgressDialog pDialog; 

private Button downloadButton; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    pDialog = new ProgressDialog(this); 
    downloadButton = (Button) findViewById(R.id.button_download); 
    downloadButton.setOnClickListener(this); 

    mInterstitialAd = new InterstitialAd(this); 
    mInterstitialAd.setAdUnitId(getString(R.string.interstitial_full_screen)); 
    AdRequest adRequest = new AdRequest.Builder().build(); 
    mInterstitialAd.loadAd(adRequest); 

    mInterstitialAd.setAdListener(new AdListener() { 
     public void onAdLoaded() { 
      showInterstitial(); 
     } 
    }); 

} 

private void showInterstitial() { 
    if (mInterstitialAd.isLoaded()) { 
     mInterstitialAd.show(); 
    } 
} 

@Override 
public void onClick(View v) { 
    switch (v.getId()){ 
     case R.id.button_download: 
      DownloadAndInstall downloadAndInstall = new DownloadAndInstall(); 
      downloadAndInstall.execute("http://cygnus.androidapksfree.com/hulk/com.viber.voip_v6.0.2.22-226_Android-4.0.apk"); 
      break; 
    } 
} 

class DownloadAndInstall extends AsyncTask<String, String, String> { 

    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     pDialog.setMessage("Downloading App"); 
     pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); 
     pDialog.setIndeterminate(true); 
     pDialog.setProgress(0); 
     pDialog.show(); 
    } 

    @Override 
    protected String doInBackground(String... urlArr) { 

     int count; 
     try { 
      Log.d("URL","URL = "+urlArr[0]); 
      URL url = new URL(urlArr[0]); 
      URLConnection urlConnection = url.openConnection(); 
      urlConnection.connect(); 

      int fileSize = urlConnection.getContentLength(); 
      File sdcard = Environment.getExternalStorageDirectory(); 

      InputStream input = new BufferedInputStream(url.openStream(), 8192); 
      OutputStream output = new FileOutputStream(sdcard+"/app_file.apk"); 

      byte[] buffer = new byte[1024]; 
      float total = 0; 

      while ((count = input.read(buffer)) != -1) { 
       total += count; 
       publishProgress(""+(int)((total*100)/fileSize)); 
       output.write(buffer, 0, count); 
      } 

      output.flush(); 
      output.close(); 
      input.close(); 

     } catch (MalformedURLException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } catch (Exception e){ 
      e.printStackTrace(); 
     } 
     return null; 
    } 

    @Override 
    protected void onProgressUpdate(String... progress) { 
     pDialog.setProgress(Integer.parseInt(progress[0])); 
    } 

    @Override 
    protected void onPostExecute(String file_url) { 
     pDialog.dismiss(); 
    } 
} 

} 

AndroidMenifest.xml

<?xml version="1.0" encoding="utf-8"?> 

<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
package="in.friper.rajeshincorp.abc"> 

<uses-permission android:name="android.permission.INTERNET" /> 
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
<uses-permission 
    android:name="android.permission.INSTALL_PACKAGES" 
    tools:ignore="ProtectedPermissions"/> 
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> 
<uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" /> 

<application 
    android:allowBackup="true" 
    android:icon="@mipmap/ic_launcher" 
    android:label="@string/app_name" 
    android:supportsRtl="true" 
    android:theme="@style/AppTheme"> 

    <meta-data 
     android:name="com.google.android.gms.version" 
     android:value="@integer/google_play_services_version" /> 

    <activity 
     android:name=".SplashActivity" 
     android:configChanges="orientation|keyboardHidden|screenSize" 
     android:label="@string/app_name" 
     android:theme="@style/FullscreenTheme"> 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 

    <activity 
     android:name="com.google.android.gms.ads.AdActivity" 
     android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" 
     android:theme="@android:style/Theme.Translucent" /> 

    <activity 
     android:name=".MainActivity" 
     android:theme="@style/FullscreenTheme"> 

    </activity> 
</application> 

SplashActivity.java

public class SplashActivity extends AppCompatActivity { 

private static final int MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE = 123; 
private static final int MY_PERMISSIONS_REQUEST_WRITE_SYNC_SETTINGS = 345; 
private static final int MY_PERMISSIONS_REQUEST_ACCESS_NETWORK_STATE = 567; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_splash); 

    if(ContextCompat.checkSelfPermission(SplashActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE)!= PackageManager.PERMISSION_GRANTED && 
      ContextCompat.checkSelfPermission(SplashActivity.this, Manifest.permission.WRITE_SYNC_SETTINGS)!= PackageManager.PERMISSION_GRANTED && 
      ContextCompat.checkSelfPermission(SplashActivity.this, Manifest.permission.ACCESS_NETWORK_STATE)!= PackageManager.PERMISSION_GRANTED) { 

     if (ActivityCompat.shouldShowRequestPermissionRationale(SplashActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE) && 
       ActivityCompat.shouldShowRequestPermissionRationale(SplashActivity.this, Manifest.permission.WRITE_SYNC_SETTINGS) && 
       ActivityCompat.shouldShowRequestPermissionRationale(SplashActivity.this, Manifest.permission.ACCESS_NETWORK_STATE)) { 

      // Show an explanation to the user *asynchronously* -- don't block 
      // this thread waiting for the user's response! After the user 
      // sees the explanation, try again to request the permission. 

     } else { 

      // No explanation needed, we can request the permission. 
      ActivityCompat.requestPermissions(SplashActivity.this, 
        new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 
        MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE); 

      ActivityCompat.requestPermissions(SplashActivity.this, 
        new String[]{Manifest.permission.WRITE_SYNC_SETTINGS}, 
        MY_PERMISSIONS_REQUEST_WRITE_SYNC_SETTINGS); 

      ActivityCompat.requestPermissions(SplashActivity.this, 
        new String[]{Manifest.permission.ACCESS_NETWORK_STATE}, 
        MY_PERMISSIONS_REQUEST_ACCESS_NETWORK_STATE); 

     } 
    } 
    goToNextActivity(); 
} 

@Override 
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) { 
    switch (requestCode) { 

     case MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE: { 

      if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { 
       // permission was granted 
      } else { 
       // permission denied 
      } 
      return; 

     } 

     case MY_PERMISSIONS_REQUEST_WRITE_SYNC_SETTINGS: { 

      if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { 
       // permission was granted 
      } else { 
       // permission denied 
      } 
      return; 
     } 

     case MY_PERMISSIONS_REQUEST_ACCESS_NETWORK_STATE: { 

      if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { 
       // permission was granted 
      } else { 
       // permission denied 
      } 
      return; 
     } 

    } 

} 

public void goToNextActivity(){ 
    Intent i= new Intent(this,MainActivity.class); 
    startActivity(i); 
    finish(); 
} 

} 

Answer 1

Приведенный выше код на самом деле работает отлично после исправления в Тоа который был вызван из неправильной нити.
Процент, казалось, застрял на 0 из-за большого размера apk.