Today, when I reused the code related to installing the APK that I wrote before, an error occurred. That is because the higher version of Android requires a new FileProvider.
New file_paths
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<!-- <root-path
name="root"
path="" />-->
<files-path
name="files"
path="files" />
<cache-path
name="cache"
path="files" />
<!-- <external-path
name="external"
path="files" />-->
<external-files-path
name="externalfiles"
path="files" />
<!-- This tag requires support 25.0.0 or above to be used -->
<external-cache-path
name="externalcache"
path="files" />
<external-path
name="external_storage_root"
path="." />
</paths>
Other writing methods
The address corresponding to the tag
The physical path is equivalent to Environment.getExternalStorageDirectory() + /path/
The physical path is equivalent to **Context.getExternalFilesDir(String) ** + /path/
The physical path is equivalent to Context.getExternalCacheDir() + /path/
Example:
<?xml version="1.0" encoding="utf-8"?>
<paths>
<!-- /storage/emulated/0/Android/data/com.test.dust/files/resources/map/tiles/1.0.8.rar
===> content://com.test.dust.provider/map_tiles/1.0.8.rar-->
<external-files-path
name="map_tiles"
path="resources/map/tiles" />
</paths>
The file path corresponding to external-files-path is /storage/emulated/0/Android/data/[packageName]/files
The entire external-files-path tag is equivalent to formatting the absolute path /storage/emulated/0/Android/data/[packageName]/files/[path]/filename into content://[authorities]/[name] /filename form.
New provider
Add the following code in of Manifest.xml
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.utilcode.fileProvider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>
Quote
APK installation
public static void installApk(Context context,String downloadApk) {
Intent intent = new Intent(Intent.ACTION_VIEW);
File file = new File(downloadApk);
//L.i("Installation path==" + downloadApk);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
Uri apkUri = FileProvider.getUriForFile
(Objects.requireNonNull(context), BuildConfig.APPLICATION_ID +
BuildConfig.APPLICATION_ID + ".utilcode.fileProvider", file);//This sentence is very important
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setDataAndType(apkUri, "application/vnd.android.package-archive");
} else {
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/vnd.android.package-archive");
}
context.startActivity(intent);
}
Adaptation
private void installApp() {
Intent intent = new Intent(Intent.ACTION_VIEW);
File file = new File(FileUtils.mkdirs(DirKeys.DIR_APP_UPDATE) + "/test.apk");
Uri apkUri = FileProvider.getUriForFile(this,
BuildConfig.APPLICATION_ID + ".utilcode.fileProvider", file);//This sentence is very important
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
LogUtils.e("lcb", "sdk:" + Build.VERSION.SDK_INT + "Go here");
intent.setAction(Intent.ACTION_INSTALL_PACKAGE);
intent.setData(apkUri);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.putExtra(Intent.EXTRA_RETURN_RESULT, true);
intent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, true);
intent.putExtra(Intent.EXTRA_ALLOW_REPLACE, true);
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setDataAndType(apkUri, "application/vnd.android.package-archive");
} else {
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/vnd.android.package-archive");
}
startActivity(intent);
}
android11 calls camera
The camera code that needs to be used in the project is as follows:
public static void startCarmera(Fragment fragment) {
Uri uri;
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
uri = FileProvider.getUriForFile(fragment.getActivity(),
BuildConfig.APPLICATION_ID + ".utilcode.fileProvider", getFile());
intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
} else {
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(getFile()));
}
fragment.startActivityForResult(intent, RESULT_CAMERA);
}
File newFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath()
+ “/images/” + System.currentTimeMillis() + “.jpg”);
if (!newFile.exists()) {
newFile.getParentFile().mkdirs();
}
mCurrentPhotoPath = newFile.getAbsolutePath();
return newFile;
}
The album code that needs to be used in the project is as follows:
public static void startGallery(Activity activity) {
Intent intentGallery = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
activity.startActivityForResult(intentGallery, RESULT_GALLERY);
}
Processing the returned image in onActivityResult():
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == RESULT_CAMERA) {
upload(CarmeraUtil.mCurrentPhotoPath);
} else if (requestCode == RESULT_GALLERY & amp; & amp; data != null) {
//Process photos from the gallery
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
upload(picturePath);
}
}
}