Android版本7返回空URI。
我的清单文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myautochatapp.sampleapp">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".VideoActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="@string/file_provider_authority"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"/>
</provider>
</application>
</manifest>
在清单
中设置字符串 <string name="file_provider_authority" translatable="false">com.myautochatapp.sampleapp.fileprovider</string>
MainActivity
public class VideoActivity extends AppCompatActivity {
Button capture_video;
TextView path_text;
private Uri fileUri;
final int MEDIA_CAPTURE_VIDEO=1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_video);
capture_video= (Button) findViewById(R.id.capture_video);
path_text= (TextView) findViewById(R.id.path_text);
capture_video.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
callVideoCapFuc();
}
});
}
private void callVideoCapFuc() {
File vfile= null;
String dateTimeOrg= new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss").format(new Date()).toString();
try {
vfile = createTemporaryFile("VID_"+dateTimeOrg,".mp4");
} catch (Exception e) {
e.printStackTrace();
}
fileUri = FileProvider.getUriForFile(VideoActivity.this,
getString(R.string.file_provider_authority),
vfile);
Intent takeVideoIntent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
takeVideoIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
if (takeVideoIntent.resolveActivity(getPackageManager()) != null) {
takeVideoIntent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(takeVideoIntent, MEDIA_CAPTURE_VIDEO);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case MEDIA_CAPTURE_VIDEO:
Uri videoUri = null;
try {
videoUri = data.getData();
}catch (Exception e){
e.printStackTrace();
}
if (videoUri.toString()!=null && !videoUri.toString().equalsIgnoreCase("")){
path_text.setText(videoUri.toString());
}
break;
}
}
private File createTemporaryFile(String part, String ext) throws Exception
{
File tempDir= Environment.getExternalStorageDirectory();
tempDir=new File(tempDir.getAbsolutePath()+"/Mine/");
if(!tempDir.exists())
{
tempDir.mkdirs();
}
return File.createTempFile(part, ext, tempDir);
}
}
提供商路径provider_paths
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path
name="external_files" path="." />
</paths>
XML layout activity_video
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.myautochatapp.sampleapp.VideoActivity">
<Button
android:layout_width="match_parent"
android:id="@+id/capture_video"
android:layout_height="wrap_content" />
<TextView
android:layout_width="match_parent"
android:id="@+id/path_text"
android:layout_below="@+id/capture_video"
android:layout_height="wrap_content" />
</RelativeLayout>
未在代码中给予权限但在启动应用程序时设置,但仍然无法正常工作,如果它的android 7,则返回null onActivityResult()
。在Android 6中工作正常
答案 0 :(得分:0)
将这些行放在活动中的onCreate()方法或片段中的onCreateView()方法中。
StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder(); StrictMode.setVmPolicy(builder.build());