Android 当我点击按钮时,它应该链接到FileManager(myfiles)并从中选择数据(txt/文档)
在下面的代码中,当我单击Android 当我点击按钮时,它应该链接到FileManager(myfiles)并从中选择数据(txt/文档),android,Android,在下面的代码中,当我单击按钮时,它将链接到图库并从中选择图像/视频,但我希望,按钮重定向到FileManager并从中选择txt文件。请帮忙 public class MainActivity extends Activity { Button b1; private static final int SELECT_PHOTO = 100; @Override protected void onCreate(Bundle savedInstanceState) {
按钮时,它将链接到图库
并从中选择图像/视频,但我希望,按钮
重定向到FileManager并从中选择txt文件。请帮忙
public class MainActivity extends Activity {
Button b1;
private static final int SELECT_PHOTO = 100;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1= (Button)findViewById(R.id.button1);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
//photoPickerIntent.setType("Document/*");
//int SELECT_PHOTO;
startActivityForResult(photoPickerIntent, SELECT_PHOTO);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) {
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
switch(requestCode) {
case SELECT_PHOTO:
if(resultCode == RESULT_OK){
Uri selectedImage = imageReturnedIntent.getData();
// String[] filePathColumn = {MediaStore.Images.Media.DATA};
String[] filePathColumn = {Environment.getExternalStorageDirectory().getAbsolutePath()};
Cursor cursor = getContentResolver().query(
selectedImage, filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String filePath = cursor.getString(columnIndex);
Intent i =new Intent(getApplication(), Activity2.class);
i.putExtra("path",filePath );
startActivity(i);
Log.d("Here", filePath);
cursor.close();
// Bitmap yourSelectedImage = BitmapFactory.decodeFile(filePath);
System.out.println("<<<<<<<<<<<<<<<<<<<<<<<<<<<<<,>>>>>>>>>>>>>>>>>>>>>>>>>>>");
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
公共类MainActivity扩展活动{
按钮b1;
私人静态最终整数选择_PHOTO=100;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1=(按钮)findViewById(R.id.button1);
b1.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
//TODO自动生成的方法存根
意向照片采集器内容=新意向(意向.行动\u采集器);
photopickerinent.setType(“image/*”);
//photopickerinent.setType(“Document/*”);
//int选择_照片;
startActivityForResult(照片采集器内容,选择照片);
}
});
}
@凌驾
ActivityResult上受保护的void(int-requestCode、int-resultCode、Intent-imageReturnedIntent){
super.onActivityResult(请求代码、结果代码、图像返回内容);
开关(请求代码){
案例选择图片:
如果(resultCode==RESULT_OK){
Uri selectedImage=imageReturnedIntent.getData();
//字符串[]filePathColumn={MediaStore.Images.Media.DATA};
String[]filePathColumn={Environment.getExternalStorageDirectory().getAbsolutePath()};
Cursor Cursor=getContentResolver().query(
选择图像、文件路径列、null、null、null);
cursor.moveToFirst();
int columnIndex=cursor.getColumnIndex(filePathColumn[0]);
String filePath=cursor.getString(columnIndex);
意图i=新意图(getApplication(),Activity2.class);
i、 putExtra(“路径”,filePath);
星触觉(i);
Log.d(“此处”,文件路径);
cursor.close();
//位图您选择的edimage=BitmapFactory.decodeFile(文件路径);
System.out.println(“使用此代码来实现目标
if (Build.VERSION.SDK_INT < 19) {
Intent intent = new Intent();
intent.setType("image/jpeg");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Image."),
GALLERY_INTENT_CALLED);
}
else {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/jpeg");
startActivityForResult(intent,
GALLERY_KITKAT_INTENT_CALLED);
}
这样试试
public String getPath(Uri uri) {
if( uri == null ) {
return null;
}
String[] projection = { MediaStore.Images.Media.DATA };
@SuppressWarnings("deprecation")
Cursor cursor = getActivity().managedQuery(uri, projection, null, null, null);
if( cursor != null ){
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
return uri.getPath();
}
if (requestCode == GALLERY_INTENT_CALLED
&& resultCode == Activity.RESULT_OK) {
originalUri = data.getData();
selectedImagePath = getPath(originalUri);
cropImageView.setImageBitmap(BitmapFactory.decodeFile(selectedImagePath));
System.out.println("GALLERY_INTENT_CALLED : "
+ originalUri.getPath());
} else if (requestCode == GALLERY_KITKAT_INTENT_CALLED
&& resultCode == Activity.RESULT_OK) {
originalUri = data.getData();
ParcelFileDescriptor parcelFileDescriptor;
try {
parcelFileDescriptor = getActivity().getContentResolver().openFileDescriptor(originalUri, "r");
FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
Bitmap image = BitmapFactory.decodeFileDescriptor(fileDescriptor);
parcelFileDescriptor.close();
cropImageView.setImageBitmap(image);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}