下面两个问题都是同一个错误FileUriExposedException。
问题1：App更新
最近有客户反应App自动更新安装失败。
查看原因报的是FileUriExposedException错误。
查看官网API找到了解决之法。
新建res/xml/provider_paths.xml文件
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| <?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path
name="external_files"
path="." />
<root-path
name="root_path"
path="." />
</paths>
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在AndroidManifest.xml中添加provider
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| <provider
android:name="android.support.v4.content.FileProvider"
android:authorities="您的包名.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"/>
</provider>
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修改Uri的获取方式
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| private void installApk(String fileName) {
Intent intent = new Intent(Intent.ACTION_VIEW);
if (Build.VERSION.SDK_INT > 23) {
Uri uri = FileProvider.getUriForFile(MainActivity.this, BuildConfig.APPLICATION_ID+".provider",
new File(Constants.APK_DOWNLOAD_DIR + File.separator + fileName));
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION|Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
intent.setDataAndType(uri, "application/vnd.android.package-archive");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
this.startActivity(intent);
} else {
intent.setDataAndType(Uri.fromFile(new File(Constants.APK_DOWNLOAD_DIR + File.separator + fileName)),
"application/vnd.android.package-archive");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
this.startActivity(intent);
}
}
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问题2：调用系统相机拍照
解决方式1
（1）前两个步骤同上
（2）
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| private void takePhoto() {
File file = new File(PATH);
if (!file.isDirectory()) {
file.mkdirs();
}
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Uri uri;
if (Build.VERSION.SDK_INT > 23) {
uri = FileProvider.getUriForFile(MainActivity.this,
BuildConfig.APPLICATION_ID+".provider",
new File(PATH+NAME));
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION|Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
} else {
uri = Uri.fromFile(new File(PATH+NAME));
}
intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
startActivityForResult(intent, 0x01);
}
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注意别漏了这句:
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| intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION|Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
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解决方式2
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| private void takePhoto() {
final File file = new File(Constants.PIC_UPLOAD_ROOT_PATH);
if (!file.isDirectory()) {
file.mkdirs();
}
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Uri uri;
String pathOne = Constants.PIC_UPLOAD_ROOT_PATH + System.currentTimeMillis() + ".jpg";
AbSharedUtil.putString(this, Constants.PUT_FILE_ONE, pathOne);
final File fileOne = new File(pathOne);
if (Build.VERSION.SDK_INT<24){
uri = Uri.fromFile(fileOne);
}else {
ContentValues contentValues = new ContentValues(1);
contentValues.put(MediaStore.Images.Media.DATA, fileOne.getAbsolutePath());
uri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,contentValues);
}
if (fileOne.exists()) {
fileOne.delete();
}
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
startActivityForResult(cameraIntent, CAMERA_REQUEST_ONE);
}
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