我有 ImageView，我想分享它的图像。
以下是我的代码，
btshare.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
View content = findViewById(R.id.full_image_view);
content.setDrawingCacheEnabled(true);
Bitmap bitmap = content.getDrawingCache();
File root = Environment.getExternalStorageDirectory();
File cachePath = new File(root.getAbsolutePath() + "/DCIM/Camera/image.jpg");
try
{
root.createNewFile();
FileOutputStream ostream = new FileOutputStream(root);
bitmap.compress(CompressFormat.JPEG, 100, ostream);
ostream.close();
}
catch (Exception e)
{
e.printStackTrace();
}
Intent shareIntent = new Intent(Intent.ACTION_SEND);
Uri phototUri = Uri.parse("/DCIM/Camera/image.jpg");
shareIntent.setData(phototUri);
shareIntent.setType("image/*");
shareIntent.putExtra(Intent.EXTRA_STREAM, phototUri);
startActivity(Intent.createChooser(shareIntent, "Share Via"));
}
});
当我按下按钮时我收到这些错误？
01-13 06:00:19.282: W/System.err(6199): java.io.FileNotFoundException: /storage/emulated/0: open failed: EISDIR (Is a directory)
01-13 06:00:19.286: W/System.err(6199): at libcore.io.IoBridge.open(IoBridge.java:409)
01-13 06:00:19.286: W/System.err(6199): at java.io.FileOutputStream.<init>(FileOutputStream.java:88)
01-13 06:00:19.294: W/System.err(6199): at java.io.FileOutputStream.<init>(FileOutputStream.java:73)
01-13 06:00:19.294: W/System.err(6199): at com.safshari.mandegar.FullImageActivity$3.onClick(FullImageActivity.java:116)
01-13 06:00:19.294: W/System.err(6199): at android.view.View.performClick(View.java:4240)
01-13 06:00:19.294: W/System.err(6199): at android.view.View$PerformClick.run(View.java:17721)
01-13 06:00:19.298: W/System.err(6199): at android.os.Handler.handleCallback(Handler.java:730)
01-13 06:00:19.298: W/System.err(6199): at android.os.Handler.dispatchMessage(Handler.java:92)
01-13 06:00:19.298: W/System.err(6199): at android.os.Looper.loop(Looper.java:137)
01-13 06:00:19.302: W/System.err(6199): at android.app.ActivityThread.main(ActivityThread.java:5103)
01-13 06:00:19.302: W/System.err(6199): at java.lang.reflect.Method.invokeNative(Native Method)
01-13 06:00:19.302: W/System.err(6199): at java.lang.reflect.Method.invoke(Method.java:525)
01-13 06:00:19.302: W/System.err(6199): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
01-13 06:00:19.306: W/System.err(6199): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
01-13 06:00:19.306: W/System.err(6199): at dalvik.system.NativeStart.main(Native Method)
01-13 06:00:19.310: W/System.err(6199): Caused by: libcore.io.ErrnoException: open failed: EISDIR (Is a directory)
01-13 06:00:19.310: W/System.err(6199): at libcore.io.Posix.open(Native Method)
01-13 06:00:19.310: W/System.err(6199): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
01-13 06:00:19.310: W/System.err(6199): at libcore.io.IoBridge.open(IoBridge.java:393)
01-13 06:00:19.314: W/System.err(6199): ... 14 more
01-13 06:00:19.618: E/Genymotion(489): Could not open '/sys/class/power_supply/genymotion_fake_path/present'
我应该做什么以及我的程序需要什么权限？我已经声明了以下权限，
<uses-permission android:name="android.permission.SET_WALLPAPER"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
最终代码，以便任何人都可以使用 imageview 保存和共享图像：
View content = findViewById(R.id.full_image_view);
content.setDrawingCacheEnabled(true);
Bitmap bitmap = content.getDrawingCache();
File root = Environment.getExternalStorageDirectory();
File cachePath = new File(root.getAbsolutePath() + "/DCIM/Camera/image.jpg");
try {
cachePath.createNewFile();
FileOutputStream ostream = new FileOutputStream(cachePath);
bitmap.compress(CompressFormat.JPEG, 100, ostream);
ostream.close();
} catch (Exception e) {
e.printStackTrace();
}
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/*");
share.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(cachePath));
startActivity(Intent.createChooser(share,"Share via"));
}
快乐编码
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