应用获取手机本地图片资源

private Button mGetImg;  
 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.main);  
        findView();  
    }  
 
    public void findView() {  
        mGetImg = (Button) findViewById(R.id.mGetLocalImg);  
        mGetImg.setOnClickListener(this);  
    }  
 
    public void onClick(View v) {  
        Intent intent = new Intent();  
        intent.setType("image/*");  
        // intent.setType("video/*");  
        intent.setAction(Intent.ACTION_GET_CONTENT);  
        startActivityForResult(intent, 1);  
    }  
 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
        if (resultCode == RESULT_OK) {  
            switch (requestCode) {  
            case 1:  
                Uri uri = data.getData();  
                ContentResolver cr = getContentResolver();  
                Cursor mCur = cr.query(uri, null, null, null, null);  
                /** 得到本地图片库中图片的 id、路径、大小、文件名 */  
                // cursor.getString(0),1,2,3  
                if(!mCur.moveToFirst()){  
                    return;  
                }  
                try {  
                    String mImgPath = mCur.getString(mCur.getColumnIndex("_data"));  
                    System.out.println("mImgPath__________" + mImgPath);  
                    // InputStream in = cr.openInputStream(uri);  
                    // Bitmap mBitmap = BitmapFactory.decodeStream(in);  
                } catch (Exception e) {  
                    e.printStackTrace();  
                }  
                break;  
            }  
        }  
    }