[英]My app crashes while requesting permission
嗨，我正在制作一個用於控制需要（WRITE_SETTINGS）權限的設備屏幕的應用程序，我使用了一種請求權限的方法，但應用程序崩潰了。 我的應用程序檢查該版本是否高於android 5或更高，它調用一種方法來請求權限，但無法正常工作，有幫助嗎？
public class MainActivity extends AppCompatActivity {
SeekBar sb;
TextView prog;
Context context;
int Brightness;
boolean pergranted;
@
Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
int MyVersion = Build.VERSION.SDK_INT;
if (MyVersion > Build.VERSION_CODES.LOLLIPOP_MR1) {
if (!checkIfpermissiongranted()) {
requestPermission();
}
sb = (SeekBar) findViewById(R.id.seekBar);
prog = (TextView) findViewById(R.id.Progress);
context = getApplicationContext();
//Getting current screen brightness
Brightness = Settings.System.getInt(context.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, 0);
//Setting current screen brightness to seekbar
sb.setProgress(Brightness);
//Setting current screen brightness to textview
prog.setText(R.string.current_brightness + Brightness);
sb.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {@
Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (pergranted) {
prog.setText(R.string.current_brightness + progress);
//Changing brightness on seekbar change
Settings.System.putInt(context.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, progress);
}
}@
Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@
Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
}
}
private boolean checkIfpermissiongranted() {
int result = ContextCompat.checkSelfPermission(this, Manifest.permission.GET_ACCOUNTS);
if (result == PackageManager.PERMISSION_GRANTED) {
return true;
} else {
return false;
}
}
private void requestPermission() {
ActivityCompat.requestPermissions(this, new String[] {
Manifest.permission.WRITE_SETTINGS
}, 1);
}
@
Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case 1:
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
pergranted = true;
}
}
}
}
Logcat
08-16 11:08:02.469 24124-24124/com.example.user.eyeprotector I/art: Late-enabling -Xcheck:jni
08-16 11:08:02.598 24124-24124/com.example.user.eyeprotector W/System: ClassLoader referenced unknown path: /data/app/com.example.user.eyeprotector-1/lib/arm
08-16 11:08:02.666 24124-24130/com.example.user.eyeprotector I/art: Debugger is no longer active
08-16 11:08:03.797 24124-24124/com.example.user.eyeprotector W/System: ClassLoader referenced unknown path: /data/app/com.example.user.eyeprotector-1/lib/arm
08-16 11:08:04.086 24124-24124/com.example.user.eyeprotector D/PhoneWindowEx: [PWEx][generateLayout] setLGNavigationBarColor : colors=0xff000000
08-16 11:08:04.086 24124-24124/com.example.user.eyeprotector I/PhoneWindow: [setLGNavigationBarColor] color=0x ff000000
08-16 11:08:04.135 24124-24124/com.example.user.eyeprotector 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$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
08-16 11:08:04.273 24124-24124/com.example.user.eyeprotector W/ResourceType: For resource 0x7f060073, entry index(115) is beyond type entryCount(22)
08-16 11:08:04.273 24124-24124/com.example.user.eyeprotector W/ResourceType: Failure getting entry for 0x7f060073 (t=5 e=115) (error -75)
08-16 11:08:04.274 24124-24124/com.example.user.eyeprotector D/AndroidRuntime: Shutting down VM
08-16 11:08:04.280 24124-24124/com.example.user.eyeprotector E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.user.eyeprotector, PID: 24124
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.user.eyeprotector/com.example.user.eyeprotector.MainActivity}: android.content.res.Resources$NotFoundException: String resource ID #0x7f060073
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2434)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494)
at android.app.ActivityThread.access$900(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5530)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:732)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x7f060073
at android.content.res.Resources.getText(Resources.java:327)
at android.support.v7.widget.ResourcesWrapper.getText(ResourcesWrapper.java:52)
at android.widget.TextView.setText(TextView.java:4642)
at com.example.user.eyeprotector.MainActivity.onCreate(MainActivity.java:58)
at android.app.Activity.performCreate(Activity.java:6272)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494)
at android.app.ActivityThread.access$900(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5530)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:732)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
08-16 11:08:06.401 24391-24391/com.example.user.eyeprotector W/System: ClassLoader referenced unknown path: /data/app/com.example.user.eyeprotector-1/lib/arm
08-16 11:08:06.526 24391-24391/com.example.user.eyeprotector W/System: ClassLoader referenced unknown path: /data/app/com.example.user.eyeprotector-1/lib/arm
08-16 11:08:06.780 24391-24391/com.example.user.eyeprotector D/PhoneWindowEx: [PWEx][generateLayout] setLGNavigationBarColor : colors=0xff000000
08-16 11:08:06.780 24391-24391/com.example.user.eyeprotector I/PhoneWindow: [setLGNavigationBarColor] color=0x ff000000
08-16 11:08:06.815 24391-24391/com.example.user.eyeprotector W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
08-16 11:08:06.906 24391-24391/com.example.user.eyeprotector W/ResourceType: For resource 0x7f060073, entry index(115) is beyond type entryCount(22)
08-16 11:08:06.906 24391-24391/com.example.user.eyeprotector W/ResourceType: Failure getting entry for 0x7f060073 (t=5 e=115) (error -75)
08-16 11:08:06.906 24391-24391/com.example.user.eyeprotector D/AndroidRuntime: Shutting down VM
08-16 11:08:06.907 24391-24391/com.example.user.eyeprotector E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.user.eyeprotector, PID: 24391
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.user.eyeprotector/com.example.user.eyeprotector.MainActivity}: android.content.res.Resources$NotFoundException: String resource ID #0x7f060073
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2434)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494)
at android.app.ActivityThread.access$900(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5530)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:732)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x7f060073
at android.content.res.Resources.getText(Resources.java:327)
at android.support.v7.widget.ResourcesWrapper.getText(ResourcesWrapper.java:52)
at android.widget.TextView.setText(TextView.java:4642)
at com.example.user.eyeprotector.MainActivity.onCreate(MainActivity.java:58)
at android.app.Activity.performCreate(Activity.java:6272)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494)
at android.app.ActivityThread.access$900(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5530)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:732)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
08-16 11:08:08.726 24391-24391/com.example.user.eyeprotector I/Process: Sending signal. PID: 24391 SIG: 9
08-16 11:08:11.524 24524-24524/com.example.user.eyeprotector I/Process: Sending signal. PID: 24524 SIG: 9
08-16 11:08:21.581 24793-24793/com.example.user.eyeprotector I/Process: Sending signal. PID: 24793 SIG: 9
08-16 11:08:25.503 24874-24874/com.example.user.eyeprotector I/Process: Sending signal. PID: 24874 SIG: 9
08-16 11:09:43.222 25035-25035/com.example.user.eyeprotector I/art: Late-enabling -Xcheck:jni
08-16 11:09:43.277 25035-25035/com.example.user.eyeprotector W/System: ClassLoader referenced unknown path: /data/app/com.example.user.eyeprotector-1/lib/arm
08-16 11:09:43.370 25035-25035/com.example.user.eyeprotector W/System: ClassLoader referenced unknown path: /data/app/com.example.user.eyeprotector-1/lib/arm
08-16 11:09:43.598 25035-25035/com.example.user.eyeprotector D/PhoneWindowEx: [PWEx][generateLayout] setLGNavigationBarColor : colors=0xff000000
08-16 11:09:43.598 25035-25035/com.example.user.eyeprotector I/PhoneWindow: [setLGNavigationBarColor] color=0x ff000000
08-16 11:09:43.641 25035-25035/com.example.user.eyeprotector W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
08-16 11:09:43.743 25035-25035/com.example.user.eyeprotector W/ResourceType: For resource 0x7f060073, entry index(115) is beyond type entryCount(22)
08-16 11:09:43.743 25035-25035/com.example.user.eyeprotector W/ResourceType: Failure getting entry for 0x7f060073 (t=5 e=115) (error -75)
08-16 11:09:43.743 25035-25035/com.example.user.eyeprotector D/AndroidRuntime: Shutting down VM
08-16 11:09:43.744 25035-25035/com.example.user.eyeprotector E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.user.eyeprotector, PID: 25035
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.user.eyeprotector/com.example.user.eyeprotector.MainActivity}: android.content.res.Resources$NotFoundException: String resource ID #0x7f060073
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2434)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494)
at android.app.ActivityThread.access$900(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5530)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:732)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x7f060073
at android.content.res.Resources.getText(Resources.java:327)
at android.support.v7.widget.ResourcesWrapper.getText(ResourcesWrapper.java:52)
at android.widget.TextView.setText(TextView.java:4642)
at com.example.user.eyeprotector.MainActivity.onCreate(MainActivity.java:58)
at android.app.Activity.performCreate(Activity.java:6272)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494)
at android.app.ActivityThread.access$900(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5530)
檢查具有字符串資源ID＃0x7f060073的R.java文件。 可能不存在。 添加后清理並重建項目。 崩潰不是由於運行時異常
錯誤在MainActivity的第58行，這是簡單的錯誤，將您的代碼封裝為使用String.valueof()方法，這將糾正Resources $ NotFoundException
更改
prog.setText(R.string.current_brightness + progress);
至
prog.setText(getResources().getString(R.string.current_brightness) + progress);
並且還要檢查current_brightness字符串資源的拼寫和可用性。
在您的onRequestPermissionsResult中添加大小寫0，因為用戶何時將允許權限requestCode將為0。
@ Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case 0:
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
pergranted = true;
}
}
用這個
prog.setText(getResources().getString(R.string.current_brightness)+" " + String.valueOf(Brightness));
問題出現在prog.setText(R.string.current_brightness + progress); 和prog.setText(R.string.current_brightness + Brightness);
setText(int) （ docs ）方法與String資源ID一起使用，例如您在示例中使用的R.string.current_brightness 。 此資源ID是一個整數，它表示字符串在生成的文件中的位置。
通過嘗試將字符串連接在一起，您實際上已經完成了整數加法運算，並且setText(int)方法正在以字符串ID 加上當前進度查找資源。
您在這里需要使用的是格式化字符串，例如：
<string name="current_brightness">Current: %1$d</string>
然后解析字符串並使用setText(CharSequence, Object... formatArgs) （ docs ）通過以下方式對其進行格式化：
prog.setText(getString(R.string.current_brightness, progress));
另外，您根本不需要修改字符串，可以使用以下命令：
prog.setText(getString(R.string.current_brightness) + progress);
如果找不到getString()則將其替換為getResources().getString()
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