您好我的应用程序与所有设备一起工作正常，但仅在三星SM-P585 device.i上面提到错误报告错误报告 请帮忙......
这里是gradle文件
apply plugin:'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion '25.0.0'
defaultConfig {
minSdkVersion 15
targetSdkVersion 25
versionCode 25
versionName "25.0"
multiDexEnabled true
}
dexOptions {
javaMaxHeapSize "4g"
}
packagingOptions {
exclude 'bin/AndroidManifest.xml'
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'),
'proguard-rules.pro'
}
}
}
dependencies {
compile project(':library')
compile fileTree(include: ['*.jar'], dir: 'libs')
compile files('libs/android-zoom-view.jar')
compile files('libs/achartengine-1.0.0.jar')
compile files('libs/mpandroidchartlibrary-2-1-1.jar')
compile files('libs/lefu.jar')
compile files('libs/HL-AndroidLib.jar')
compile files('libs/HL-DataDecoderLib.jar')
compile 'com.android.support:appcompat-v7:22.2.0'
compile files('libs/libGoogleAnalyticsServices.jar')
compile 'com.google.android.gms:play-services:6.5.87'
compile files('libs/itextpdf-5.3.3.jar')
compile 'com.android.support:multidex:1.0.1'
}
错误报告
10-26 23:58:33.211 W/System.err(23790):java.io.FileNotFoundException: /storage/emulated/0/WatIf/WatIf_Log.txt: open failed: EACCES (Permission denied)
10-26 23:58:33.211 W/System.err(23790): at libcore.io.IoBridge.open(IoBridge.java:452)
10-26 23:58:33.211 W/System.err(23790): at java.io.FileOutputStream.(FileOutputStream.java:87)
10-26 23:58:33.211 W/System.err(23790): at java.io.FileWriter.(FileWriter.java:58)
10-26 23:58:33.211 W/System.err(23790): at com.watifhealth.community.log.LogToFile.Log(LogToFile.java:64)
10-26 23:58:33.211 W/System.err(23790): at com.watifhealth.community.log.Logger.Log(Logger.java:36)
10-26 23:58:33.211 W/System.err(23790): at com.watifhealth.community.calculation.CommonMethods.GetPersonAge(CommonMethods.java:42)
10-26 23:58:33.211 W/System.err(23790): at com.watifhealth.community.BaseActivity.SessionSP(BaseActivity.java:258)
10-26 23:58:33.211 W/System.err(23790): at com.watifhealth.community.BaseActivity.onCreate(BaseActivity.java:105)
10-26 23:58:33.211 W/System.err(23790): at com.watifhealth.community.PatientsFragmentActivity.onCreate(PatientsFragmentActivity.java:174)
10-26 23:58:33.211 W/System.err(23790): at android.app.Activity.performCreate(Activity.java:6904)
10-26 23:58:33.211 W/System.err(23790): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1136)
10-26 23:58:33.211 W/System.err(23790): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3266)
10-26 23:58:33.211 W/System.err(23790): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3415)
10-26 23:58:33.211 W/System.err(23790): at android.app.ActivityThread.access$1100(ActivityThread.java:229)
10-26 23:58:33.211 W/System.err(23790): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1821)
10-26 23:58:33.211 W/System.err(23790): at android.os.Handler.dispatchMessage(Handler.java:102)
10-26 23:58:33.211 W/System.err(23790): at android.os.Looper.loop(Looper.java:148)
10-26 23:58:33.211 W/System.err(23790): at android.app.ActivityThread.main(ActivityThread.java:7399)
10-26 23:58:33.211 W/System.err(23790): at java.lang.reflect.Method.invoke(Native Method)
10-26 23:58:33.211 W/System.err(23790): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
10-26 23:58:33.211 W/System.err(23790): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
10-26 23:58:33.211 W/System.err(23790): Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied)
10-26 23:58:33.211 W/System.err(23790): at libcore.io.Posix.open(Native Method)
10-26 23:58:33.211 W/System.err(23790): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
10-26 23:58:33.211 W/System.err(23790): at libcore.io.IoBridge.open(IoBridge.java:438)
10-26 23:58:33.211 W/System.err(23790): ... 20 more
10-26 23:58:33.221 I/Directory:(23790): Already exists.!!
10-26 23:58:33.221 W/System.err(23790): java.io.FileNotFoundException: /storage/emulated/0/WatIf/WatIf_Log.txt: open failed: EACCES (Permission denied)
10-26 23:58:33.221 W/System.err(23790): at libcore.io.IoBridge.open(IoBridge.java:452)
10-26 23:58:33.221 W/System.err(23790): at java.io.FileOutputStream.(FileOutputStream.java:87)
10-26 23:58:33.221 W/System.err(23790): at java.io.FileWriter.(FileWriter.java:58)
10-26 23:58:33.221 W/System.err(23790): at com.watifhealth.community.log.LogToFile.Log(LogToFile.java:64)
10-26 23:58:33.221 W/System.err(23790): at com.watifhealth.community.log.Logger.Log(Logger.java:36)
10-26 23:58:33.221 W/System.err(23790): at com.watifhealth.community.calculation.CommonMethods.GetPersonAge(CommonMethods.java:42)
10-26 23:58:33.221 W/System.err(23790): at com.watifhealth.community.BaseActivity.SessionSP(BaseActivity.java:258)
10-26 23:58:33.221 W/System.err(23790): at com.watifhealth.community.BaseActivity.onCreate(BaseActivity.java:105)
10-26 23:58:33.221 W/System.err(23790): at com.watifhealth.community.PatientsFragmentActivity.onCreate(PatientsFragmentActivity.java:174)
10-26 23:58:33.221 W/System.err(23790): at android.app.Activity.performCreate(Activity.java:6904)
这是我声明所有权限的清单文件
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<!-- GCM requires a Google account. -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<!-- Keeps the processor from sleeping when a message is received. -->
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission
android:name="android.permission.CAMERA"
android:required="true" />
<uses-permission android:name="android.permission.READ_LOGS" />
<!-- for glucometer -->
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<!-- for bp machine -->
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
对于marshmallow版本，我还添加了运行时权限
private static final int REQUEST_EXTERNAL_STORAGE = 1;
private static final int REQUEST_LOCATION = 2;
private static final int REQUEST_CAMERA = 3;
private static String[] PERMISSIONS_STORAGE = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.ACCESS_COARSE_LOCATION
};
private static String[] PERMISSIONS_LOCATION = {
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.ACCESS_COARSE_LOCATION
};
public void verifyStoragePermissions(Activity activity) {
// Check if we have write permission
int permission = ActivityCompat.checkSelfPermission(activity,
Manifest.permission.WRITE_EXTERNAL_STORAGE);
int permission1 = ActivityCompat.checkSelfPermission(activity,
Manifest.permission.ACCESS_COARSE_LOCATION);
int permission2 = ActivityCompat.checkSelfPermission(activity,
Manifest.permission.CAMERA);
if (permission != PackageManager.PERMISSION_GRANTED) {
// We don't have permission so prompt the user
ActivityCompat.requestPermissions(
activity,
PERMISSIONS_STORAGE,
REQUEST_EXTERNAL_STORAGE
);
}
if (permission1 != PackageManager.PERMISSION_GRANTED) {
// We don't have permission so prompt the user
ActivityCompat.requestPermissions(
activity,
PERMISSIONS_LOCATION,
REQUEST_LOCATION
);
}
if (permission2 != PackageManager.PERMISSION_GRANTED) {
// We don't have permission so prompt the user
ActivityCompat.requestPermissions(
activity,
PERMISSIONS_STORAGE,
REQUEST_CAMERA
);
}
count++;
}
这是在设备内存中创建文件。
public class LogToFile implements ILogger {
public static FileHandler logger = null;
String filename = "WatIf_Log";
static boolean isExternalStorageAvailable = false;
static boolean isExternalStorageWriteable = false;
static String state = Environment.getExternalStorageState();
private PrintWriter writer;
@Override
public void Log(Exception e) {
String message = Log.getStackTraceString(e);
if (Environment.MEDIA_MOUNTED.equals(state)) {
isExternalStorageAvailable = isExternalStorageWriteable = true;
} else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
isExternalStorageAvailable = true;
isExternalStorageWriteable = false;
} else {
isExternalStorageAvailable = isExternalStorageWriteable = false;
}
File dir = new File(
Environment.getExternalStorageDirectory(),
"WatIf");
if (Environment.MEDIA_MOUNTED.equals(state)) {
if (!dir.exists()) {
Log.d("Dir Created:", "Directory is created");
dir.mkdir();
} else {
Log.i("Directory:", "Already exists.!!");
}
File logFile = new File(dir, "" + filename + ".txt");
if (!logFile.exists()) {
try {
Log.d("File Create:", "Log File Created ");
logFile.createNewFile();
} catch (Exception ex) {
ex.printStackTrace();
}
}
try {
writer = new PrintWriter(new FileWriter(logFile, false));
Date date = new Date();
Calendar cal = Calendar.getInstance();
cal.setTime(date);
writer.write("Logged at"
+ cal.get(Calendar.DAY_OF_MONTH) + "-"
+ cal.get(Calendar.MONTH) + "-"
+ cal.get(Calendar.YEAR) + " , "
+ String.valueOf(cal.get(Calendar.HOUR) + ":"
+ cal.get(Calendar.MINUTE) + ":"
+ cal.get(Calendar.SECOND) + "\n"));
writer.write(message);
writer.println("--");
writer.flush();
writer.close();
Log.i("File:", "Data written on File.!!");
} catch (Exception er) {
er.printStackTrace();
}
}
}
@Override
public void Log(String strMessage) {
if (Environment.MEDIA_MOUNTED.equals(state)) {
isExternalStorageAvailable = isExternalStorageWriteable = true;
} else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
isExternalStorageAvailable = true;
isExternalStorageWriteable = false;
} else {
isExternalStorageAvailable = isExternalStorageWriteable = false;
}
File dir = new File(
Environment.getExternalStorageDirectory(),
"WatIf");
if (Environment.MEDIA_MOUNTED.equals(state)) {
if (!dir.exists()) {
Log.d("Dir Created:", "Directory is created");
dir.mkdir();
} else {
Log.i("Directory:", "Already exists.!!");
}
File logFile = new File(dir, "" + filename + ".txt");
if (!logFile.exists()) {
try {
Log.d("File Create:", "Log File Created ");
logFile.createNewFile();
} catch (Exception ex) {
ex.printStackTrace();
}
}
try {
writer = new PrintWriter(new FileWriter(logFile, false));
Date date = new Date();
Calendar cal = Calendar.getInstance();
cal.setTime(date);
writer.write("Logged at"
+ cal.get(Calendar.DAY_OF_MONTH) + "-"
+ cal.get(Calendar.MONTH) + "-"
+ cal.get(Calendar.YEAR) + " , "
+ String.valueOf(cal.get(Calendar.HOUR) + ":"
+ cal.get(Calendar.MINUTE) + ":"
+ cal.get(Calendar.SECOND) + "\n"));
writer.write(strMessage);
writer.println("--");
writer.flush();
writer.close();
Log.i("File:", "Data written on File.!!");
} catch (Exception er) {
er.printStackTrace();
}
}
}
@Override
public void Log(Context context, String Title, String strMessage) {
// TODO Auto-generated method stub
}
@Override
public void ShowInformationCloud(Context context, String strMessage) {
}
}
提前致谢...
答案 0 :(得分：2)
您还应该覆盖onRequestPermissionResult，了解用户使用“拒绝”或“允许”操作执行的操作。
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay! Do the
// contacts-related task you need to do.
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
}
return;
}
// other 'case' lines to check for other
// permissions this app might request
}
super.onRequestPermissionsResult(requestCode,permissions,grantResults);
}
答案 1 :(得分：0)
检查所有条件
1）在Application类或活动onCreate（）中：
StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();
StrictMode.setVmPolicy(builder.build());
2）禁用从设备到计算机的文件传输。如果启用，应用程序将无法访问SD卡。