Java 在棒棒糖上以编程方式隐藏SD卡上的图像
我试图在SD卡上隐藏一些图像,但它们没有隐藏。Java 在棒棒糖上以编程方式隐藏SD卡上的图像,java,android,image,hide,Java,Android,Image,Hide,我试图在SD卡上隐藏一些图像,但它们没有隐藏。 我尝试了这个代码,但没有成功 请帮帮我 ======================代码============== Log.e("old path", "" + mTempArry.get(i));//get All file pathe File fileinDirectory = new File(mTempArry.get(i)); File newfilee = new File(hideImage + fileinDirectory
我尝试了这个代码,但没有成功 请帮帮我 ======================代码==============
Log.e("old path", "" + mTempArry.get(i));//get All file pathe
File fileinDirectory = new File(mTempArry.get(i));
File newfilee = new File(hideImage + fileinDirectory.getName());
Log.e("new path", "" + hideImage + fileinDirectory.getName());
boolean d = fileinDirectory.renameTo(newfilee);
if (d) {
try {
getContentResolver()
.delete(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
MediaStore.Images.Media.DATA + "='"
+ fileinDirectory.getPath()
+ "'", null);
db.insertImage(fileinDirectory.getName(),
fileinDirectory.getPath());
} catch (Exception e) {
e.printStackTrace();
}
filesmoved = filesmoved + 1;
publishProgress(filesmoved + "/" + totalFilesToMove);
} else {
renameFileExtension(mTempArry.get(i), "jpg");
try {
copyFile(fileinDirectory, newfilee);
getContentResolver()
.delete(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
MediaStore.Images.Media.DATA + "='"
+ fileinDirectory.getPath()
+ "'", null);
db.insertImage(fileinDirectory.getName(),
fileinDirectory.getPath());
// renameFileExtension(mTempArry.get(i), "txt");
fileinDirectory.delete();
Log.e("rename", "" + d);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
它基本上是重命名文件并以点(.)开头。因为android有linux内核,所以它会隐藏每个以点(.)开头的文件
确保您在AndroidManifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
还要注意,Environment.getExternalStorageDirectory()
表示SD卡上映像的文件夹
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />