我需要有关在 Android 模拟器中保存文件的权限的帮助...我已添加
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-feature android:name="android.hardware.camera" android:required="true" />
在AndroidManifest.xml中
我的保存文件代码:
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
imageView.setImageBitmap(imageBitmap);
}
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/Img");
myDir.mkdirs();
long n = System.currentTimeMillis();
String fname = "IMG_" + n + ".jpeg";
file = new File(myDir, fname);
if (file.exists())
file.delete();
try {
FileOutputStream out2 = new FileOutputStream(file);// here fire exception
imageBitmap.compress(Bitmap.CompressFormat.JPEG, 90, out2);
out2.flush();
out2.close();
} catch (Exception e) {
e.printStackTrace();
}
}
AndroidManifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.denis.calculator">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".InfoActivity"></activity><!-- ATTENTION: This was auto-generated to add Google Play services to your project for
App Indexing. See https://g.co/AppIndexing/AndroidStudio for more information. -->
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
</application>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-feature android:name="android.hardware.camera" android:required="true" />
有什么想法吗？
最佳答案
解决方案是从 Nougat 降级为 KitKat!感谢您的建议
关于Android模拟器打开失败: ENOENT (No such file or directory)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39819128/