每当我要求权限时，我的应用程序崩溃了。我在清单中定义了正确的uses-permission作为清单标记的子代。它没有给出任何错误，只是一个弹出窗口显示Package Installer已经停止并且监视器中的一行显示sendUserActionEvent() mView == null，我不确定是否与崩溃有关。
以下是我要求权限的代码段：
if(ContextCompat.checkSelfPermission(MainActivity.this,
Manifest.permission.INTERNET) != PackageManager.PERMISSION_GRANTED) {
Log.d("MAD", "Internet permission is not enabled!");
requestPermissions(new String[] {Manifest.permission.INTERNET},
PERMISSION_REQUEST_INTERNET);
return null;
}
最小sdk设置为23，在Samsung Galaxy S7上进行测试。
您可以在此处查看完整代码https://github.com/zimmyg/MAD_Test
Logcat在这里：
09-18 17:25:05.350 9483-9489/mad.mad_test I/art: Debugger is active
09-18 17:25:05.540 9483-9483/mad.mad_test I/System.out: Debugger has connected
09-18 17:25:05.540 9483-9483/mad.mad_test I/System.out: waiting for debugger to settle...
09-18 17:25:05.730 9483-9483/mad.mad_test I/System.out: waiting for debugger to settle...
09-18 17:25:05.930 9483-9483/mad.mad_test I/System.out: waiting for debugger to settle...
09-18 17:25:06.130 9483-9483/mad.mad_test I/System.out: waiting for debugger to settle...
09-18 17:25:06.330 9483-9483/mad.mad_test I/System.out: waiting for debugger to settle...
09-18 17:25:06.530 9483-9483/mad.mad_test I/System.out: waiting for debugger to settle...
09-18 17:25:06.740 9483-9483/mad.mad_test I/System.out: waiting for debugger to settle...
09-18 17:25:06.940 9483-9483/mad.mad_test I/System.out: waiting for debugger to settle...
09-18 17:25:07.130 9483-9483/mad.mad_test I/System.out: waiting for debugger to settle...
09-18 17:25:07.330 9483-9483/mad.mad_test I/System.out: debugger has settled (1339)
09-18 17:25:07.350 9483-9483/mad.mad_test I/InjectionManager: Inside getClassLibPath caller
09-18 17:25:07.380 9483-9483/mad.mad_test W/System: ClassLoader referenced unknown path: /data/app/mad.mad_test-1/lib/arm64
09-18 17:25:07.500 9483-9483/mad.mad_test W/System: ClassLoader referenced unknown path: /data/app/mad.mad_test-1/lib/arm64
09-18 17:25:07.520 9483-9483/mad.mad_test D/InjectionManager: InjectionManager
09-18 17:25:07.520 9483-9483/mad.mad_test D/InjectionManager: fillFeatureStoreMap mad.mad_test
09-18 17:25:07.520 9483-9483/mad.mad_test I/InjectionManager: Constructor mad.mad_test, Feature store :{}
09-18 17:25:07.520 9483-9483/mad.mad_test I/InjectionManager: featureStore :{}
09-18 17:25:07.610 9483-9483/mad.mad_test W/ResourcesManager: getTopLevelResources: /data/app/mad.mad_test-1/base.apk / 1.0 running in mad.mad_test rsrc of package mad.mad_test
09-18 17:25:07.620 9483-9483/mad.mad_test D/ContextRelationManager: ContextRelationManager() : FEATURE_ENABLED=true
09-18 17:25:07.620 9483-9483/mad.mad_test D/RelationGraph: garbageCollect()
09-18 17:25:07.620 9483-9483/mad.mad_test W/ResourcesManager: getTopLevelResources: /data/app/mad.mad_test-1/base.apk / 1.0 running in mad.mad_test rsrc of package mad.mad_test
09-18 17:25:07.750 9483-9483/mad.mad_test W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
09-18 17:25:07.830 9483-9483/mad.mad_test D/AbsListView: Get MotionRecognitionManager
09-18 17:25:07.830 9483-9483/mad.mad_test E/MotionRecognitionManager: mSContextService = android.hardware.scontext.ISContextService$Stub$Proxy@2d093ce
09-18 17:25:07.830 9483-9483/mad.mad_test E/MotionRecognitionManager: motionService = com.samsung.android.motion.IMotionRecognitionService$Stub$Proxy@a661eda
09-18 17:25:07.830 9483-9483/mad.mad_test E/MotionRecognitionManager: motionService = com.samsung.android.motion.IMotionRecognitionService$Stub$Proxy@a661eda
09-18 17:25:07.840 9483-9483/mad.mad_test D/Activity: performCreate Call Injection manager
09-18 17:25:07.840 9483-9483/mad.mad_test I/InjectionManager: dispatchOnViewCreated > Target : mad.mad_test.MainActivity isFragment :false
09-18 17:25:07.870 9483-9483/mad.mad_test D/SecWifiDisplayUtil: Metadata value : SecSettings2
09-18 17:25:07.870 9483-9483/mad.mad_test D/ViewRootImpl: #1 mView = com.android.internal.policy.PhoneWindow$DecorView{3d6112e I.E...... R.....ID 0,0-0,0}
09-18 17:25:07.880 9483-9534/mad.mad_test D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
09-18 17:25:07.950 9483-9534/mad.mad_test D/libEGL: eglInitialize EGLDisplay = 0x7f83aff178
09-18 17:25:07.950 9483-9534/mad.mad_test I/OpenGLRenderer: Initialized EGL, version 1.4
[ 09-18 17:25:07.960 9483: 9534 D/ ]
ro.exynos.dss isEnabled: 0
09-18 17:25:07.980 9483-9534/mad.mad_test D/mali_winsys: new_window_surface returns 0x3000, [1440x2560]-format:1
09-18 17:25:08.090 9483-9483/mad.mad_test I/InjectionManager: dispatchCreateOptionsMenu :mad.mad_test.MainActivity
09-18 17:25:08.090 9483-9483/mad.mad_test I/InjectionManager: dispatchPrepareOptionsMenu :mad.mad_test.MainActivity
09-18 17:25:08.100 9483-9483/mad.mad_test W/DisplayListCanvas: DisplayListCanvas is started on unbinded RenderNode (without mOwningView)
09-18 17:25:08.110 9483-9534/mad.mad_test D/libGLESv1: DTS_GLAPI : DTS is not allowed for Package : mad.mad_test
09-18 17:25:08.200 9483-9483/mad.mad_test D/ViewRootImpl: MSG_RESIZED_REPORT: ci=Rect(0, 96 - 0, 0) vi=Rect(0, 96 - 0, 0) or=1
09-18 17:25:08.240 9483-9483/mad.mad_test I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@92514f9 time:304111002
09-18 17:25:18.620 9483-9483/mad.mad_test D/ViewRootImpl: ViewPostImeInputStage processPointer 0
09-18 17:25:18.690 9483-9483/mad.mad_test D/ViewRootImpl: ViewPostImeInputStage processPointer 1
09-18 17:25:18.700 9483-9800/mad.mad_test D/MAD: Internet permission is not enabled!
09-18 17:25:18.830 9483-9534/mad.mad_test D/OpenGLRenderer: endAllActiveAnimators on 0x7f72b30800 (RippleDrawable) with handle 0x7f72b7d7e0
09-18 17:25:18.830 9483-9483/mad.mad_test D/ViewRootImpl: #3 mView = null
答案 0 :(得分：1)
嗨我检查了你的代码，经过一些更新后，它的工作正常。我的下载网址不起作用。我已经添加了如何给予多重许可。
public class MainActivity extends AppCompatActivity {
private ArrayList<String> entries;
private ArrayAdapter<String> adapter;
private ListView listView;
private Button btnStartTest;
//PERMISSIONS
final private int REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS = 124;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (Build.VERSION.SDK_INT >= 23) {
// Marshmallow+
callMultiplePermissions();
} else {
// Pre-Marshmallow
}
entries = new ArrayList<>();
adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, entries);
listView = (ListView ) findViewById(R.id.listView);
listView.setAdapter(adapter);
btnStartTest = (Button) findViewById(R.id.btnStartTest);
btnStartTest.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new BackgroundAsync().execute();
}
});
}
private class BackgroundAsync extends AsyncTask<Integer, Double, Long> {
private final Integer FILE_SIZE = 5 * 1024 * 1024; // 5MB
private String current;
@Override
protected void onPreExecute() {
super.onPreExecute();
btnStartTest.setEnabled(false);
current = new String();
}
@Override
protected Long doInBackground(Integer... params) {
try {
URL downURL = new URL("http://api.androidhive.info/progressdialog/hive.jpg");
URLConnection conn = downURL.openConnection();
long startTime = System.currentTimeMillis();
long totalDownloaded = 0;
BufferedInputStream bis = new BufferedInputStream(conn.getInputStream());
int read = 0;
byte[] buf = new byte[1024];
while ((read = bis.read(buf)) != -1) {
totalDownloaded += read;
// Publish percentage
publishProgress(((double)totalDownloaded/(double)FILE_SIZE) * 100.0);
}
long finishTime = System.currentTimeMillis();
return finishTime - startTime;
} catch (Exception e) {
Log.e("MAD", e.getMessage());
return null;
}
}
@Override
protected void onProgressUpdate(Double... progress) {
// Show progress update
}
@Override
protected void onPostExecute(Long result) {
super.onPostExecute(result);
if(result != null) {
current = "Speed: " + ((double)FILE_SIZE / 1024 / 1024)/((double)result / 1000) + "MB/s";
Log.e("MAD","check speed :" + current);
}
btnStartTest.setEnabled(true);
}
}
//************** Multiple permissions ****************//
/**
* Call multiple Permissions
*/
private void callMultiplePermissions() {
List<String> permissionsNeeded = new ArrayList<String>();
final List<String> permissionsList = new ArrayList<String>();
if (!addPermission(permissionsList, Manifest.permission.ACCESS_NETWORK_STATE))
permissionsNeeded.add("NETWORK STATE");
if (!addPermission(permissionsList, Manifest.permission.WRITE_EXTERNAL_STORAGE))
permissionsNeeded.add("WRITE EXTERNAL STORAGE");
if (permissionsList.size() > 0) {
if (permissionsNeeded.size() > 0) {
// Need Rationale
String message = "You need to grant access to " + permissionsNeeded.get(0);
for (int i = 1; i < permissionsNeeded.size(); i++)
message = message + ", " + permissionsNeeded.get(i);
if (Build.VERSION.SDK_INT >= 23) {
// Marshmallow+
requestPermissions(permissionsList.toArray(new String[permissionsList.size()]),
REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS);
} else {
// Pre-Marshmallow
}
return;
}
if (Build.VERSION.SDK_INT >= 23) {
// Marshmallow+
requestPermissions(permissionsList.toArray(new String[permissionsList.size()]),
REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS);
} else {
// Pre-Marshmallow
}
return;
}
}
/**
* add Permissions
*
* @param permissionsList
* @param permission
* @return
*/
private boolean addPermission(List<String> permissionsList, String permission) {
if (Build.VERSION.SDK_INT >= 23) {
// Marshmallow+
if (checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
permissionsList.add(permission);
// Check for Rationale Option
if (!shouldShowRequestPermissionRationale(permission))
return false;
}
} else {
// Pre-Marshmallow
}
return true;
}
/**
* Permissions results
*
* @param requestCode
* @param permissions
* @param grantResults
*/
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS: {
Map<String, Integer> perms = new HashMap<>();
// Initial
perms.put(Manifest.permission.ACCESS_NETWORK_STATE, PackageManager.PERMISSION_GRANTED);
perms.put(Manifest.permission.WRITE_EXTERNAL_STORAGE, PackageManager.PERMISSION_GRANTED);
// Fill with results
for (int i = 0; i < permissions.length; i++)
perms.put(permissions[i], grantResults[i]);
// Check for ACCESS_FINE_LOCATION and others
if (perms.get(Manifest.permission.ACCESS_NETWORK_STATE) == PackageManager.PERMISSION_GRANTED
&& perms.get(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED ) {
// All Permissions Granted
} else {
// Permission Denied
Toast.makeText(MainActivity.this, "Some Permission is Denied", Toast.LENGTH_SHORT)
.show();
}
}
break;
default:
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
}
在清单文件中添加了这些权限
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
谢谢希望这会对你有所帮助。
答案 1 :(得分：0)
有些权限会在安装时自动授予，并且无法撤销。我们称之为正常许可（PROTECTION_NORMAL）。
所以“android.permission.INTERNET”在正常的权限列表下，无需在运行时询问权限。