如何调用andorid本地图库并获取其图片路径

如何调用android本地图库：

使用Intent实现页面跳转，到本地图库界面（如点击按钮bt1实现页面跳转至图库）：

public void bt1(View view){
		 Intent intent = new Intent(Intent.ACTION_PICK,
                 android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
         startActivityForResult(intent,0);
	}

然后获取点击图片的路径：

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if(data!=null){
			if(requestCode==0&&resultCode==Activity.RESULT_OK){
				Uri selectedImage =data.getData();
				String [] filePathColumn={MediaStore.Images.Media.DATA};
				 Cursor cursor = getContentResolver().query(selectedImage,
	                        filePathColumn, null, null, null);
				 cursor.moveToFirst();
	             int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
	             String picPath = cursor.getString(columnIndex);
	             cursor.close();
	             if(picPath.equals("")) return;
	             Intent intent = new Intent(this, Function1.class);
	             Bundle bundle =new Bundle();
	 	     bundle.putString("imagePath",picPath);
	 	     intent.putExtras(bundle);
	             startActivity(intent);
			}

	}

把图片的路径通过Bundle进行传递给其他Activity并显示：

                Intent intent =getIntent();
		Bundle bundle =intent.getExtras();
		String imagePath=bundle.getString("imagePath");
	        bitmap =BitmapFactory.decodeFile(imagePath);
		mImageView.setImageBitmap(bm);