我正在尝试安装我刚刚下载的APK。但是，当我利用意图安装APK时，我得到错误android.content.ActivityNotFoundException：找不到处理Intent的Activity ... 这是我的来源：
class DownloadTask extends AsyncTask<String, Integer, String> {
private Context context;
private String output;
private Boolean install;
private String file;
private PowerManager.WakeLock wakeLock;
public DownloadTask(Context context, String output, String file, Boolean install) {
this.context = context;
this.output = output;
this.install = install;
this.file = file;
}
@Override
protected String doInBackground(String... surl) {
InputStream input = null;
OutputStream output = null;
HttpURLConnection c = null;
try {
URL url = new URL(surl[0]);
c = (HttpURLConnection) url.openConnection();
c.connect();
if (c.getResponseCode() != HttpURLConnection.HTTP_OK)
return "Server returned HTTP " + c.getResponseCode() + " " + c.getResponseMessage();
int filelength = c.getContentLength();
input = c.getInputStream();
output = new FileOutputStream(this.output + this.file);
byte data[] = new byte[4096];
long total = 0;
int count;
while ((count = input.read(data)) != -1) {
total += count;
if (filelength > 0)
publishProgress((int) (total * 100 / filelength));
output.write(data, 0, count);
}
} catch (Exception e) {
return e.toString();
} finally {
try {
if (output != null) output.close();
if (input != null) input.close();
} catch (IOException e) {
}
if (c != null) c.disconnect();
}
return null;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, getClass().getName());
wakeLock.acquire();
pDialog.show();
}
@Override
protected void onProgressUpdate(Integer... progress) {
super.onProgressUpdate(progress);
pDialog.setIndeterminate(false);
pDialog.setMax(100);
pDialog.setProgress(progress[0]);
}
@Override
protected void onPostExecute(String result) {
wakeLock.release();
pDialog.dismiss();
if (result != null)
Toast.makeText(context, "Download error: " + result, Toast.LENGTH_LONG).show();
else if (this.install) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse("file://" + this.output + this.file), "application/vnd.android.package-archive");
this.context.startActivity(intent);
}
}
}
这是错误的堆栈跟踪：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.lastboxusa.lastboxinstaller, PID: 3076
android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=file:///data/data/com.lastboxusa.lastboxinstaller/kodi.apk typ=application/vnd.android.package-acrhive }
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1632)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1424)
at android.app.Activity.startActivityForResult(Activity.java:3424)
at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:48)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:75)
at android.app.Activity.startActivityForResult(Activity.java:3385)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:856)
at android.app.Activity.startActivity(Activity.java:3627)
at android.app.Activity.startActivity(Activity.java:3595)
at com.lastboxusa.lastboxinstaller.MainActivity$DownloadTask.onPostExecute(MainActivity.java:136)
at com.lastboxusa.lastboxinstaller.MainActivity$DownloadTask.onPostExecute(MainActivity.java:59)
at android.os.AsyncTask.finish(AsyncTask.java:632)
at android.os.AsyncTask.access$600(AsyncTask.java:177)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分：1)
问题与apk的名称不是原始名称有关。将其重命名为原始名称。
答案 1 :(得分：0)
使用此代码：
if (Build.VERSION.SDK_INT >= 29) {
try {
// DisplayUtils.getInstance().displayLog(TAG, "download completed trying to open application::::::::" + file.getAbsolutePath());
DisplayUtils.getInstance().displayLog(TAG, "path::::" + Environment.getExternalStorageDirectory() + "/Documents");
Intent installApplicationIntent = new Intent(Intent.ACTION_VIEW);
File file = new File(Environment.getExternalStorageDirectory() + "/Documents", "yourfile.apk");
if (file.exists()) {
DisplayUtils.getInstance().displayLog(TAG, "is readable:::::::::" + file.canRead());
file.setReadable(true);
installApplicationIntent.setDataAndType(FileProvider.getUriForFile(context,
BuildConfig.APPLICATION_ID + ".provider",
file), "application/vnd.android.package-archive");
} else {
DisplayUtils.getInstance().displayLog(TAG, "file not found after downloading");
}
installApplicationIntent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
installApplicationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
installApplicationIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
context.startActivity(installApplicationIntent);
ExitActivity.exitApplicationAnRemoveFromRecent(context);
} catch (Exception cv)
{
}
}