public void getinternalstorage() {
StatFs stat = new StatFs(Environment.getExternalStorageDirectory().getPath());
double bytesavalible = (double) stat.getBlockSizeLong() * (double) stat.getAvailableBlocksLong();
final double gb = bytesavalible / (1024 * 1024 * 1024);
double total = (double) stat.getBlockSizeLong() * stat.getBlockCountLong();
final double totalgb = total / (1024 * 1024 * 1024);
final double per = (100 - (gb / totalgb) * 100);
update_inte((int) (per * 1), round(totalgb, 2), round((gb), 2));
TextView text2written = (TextView) findViewById(R.id.inter);
text2written.setText(String.valueOf(round((totalgb - gb), 2)) + " GB " + "/ " + String.valueOf(round(totalgb, 2)) + " GB");
}
我已经取得了必要的许可。
对于Android 5.0及以下版本 -
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
对于Android 6.0及以上版本,我正在请求运行时权限。
但是我收到了大约10个用户的android.system.ErrnoException
错误。
完整的堆栈跟踪:
Fatal Exception: java.lang.RuntimeException: Unable to resume activity {com.package.app.Main_Screen}: java.lang.IllegalArgumentException: Invalid path: /sdcard
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3121)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3152)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1398)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5443)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
Caused by java.lang.IllegalArgumentException: Invalid path: /sdcard
at android.os.StatFs.doStat(StatFs.java:46)
at android.os.StatFs.(StatFs.java)
at com.package.app.Main_Screen.getinternalstorage(Main_Screen.java:565)
at com.package.app.Main_Screen.on_resume(Main_Screen.java:785)
at com.package.app.Main_Screen.checkPermission(Main_Screen.java:1070)
at com.package.app.Main_Screen.onResume(Main_Screen.java:779)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1281)
at android.app.Activity.performResume(Activity.java:6320)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3110)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3152)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1398)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5443)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
Caused by android.system.ErrnoException: statvfs failed: ENOENT (No such file or directory)
at libcore.io.Posix.statvfs(Posix.java)
at libcore.io.BlockGuardOs.statvfs(BlockGuardOs.java:298)
at android.system.Os.statvfs(Os.java:500)
at android.os.StatFs.doStat(StatFs.java:44)
at android.os.StatFs.(StatFs.java)
at com.package.app.Main_Screen.getinternalstorage(Main_Screen.java:565)
at com.package.app.Main_Screen.on_resume(Main_Screen.java:785)
at com.package.app.Main_Screen.checkPermission(Main_Screen.java:1070)
at com.package.app.Main_Screen.onResume(Main_Screen.java:779)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1281)
at android.app.Activity.performResume(Activity.java:6320)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3110)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3152)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1398)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5443)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
我在5.0到7.0版本的安卓系统中遇到了这个错误。
Environment.getExternalStorageDirectory().getPath()
不能够可靠地获取外部存储路径。这个链接可以为您提供如何防止丢失SD卡路径的参考。 - aLIEz