如何将图片存储到手机画廊

Question

    /* now i want to save my image present in imageview to phone gallery */

    private Button button1;    
    private ImageView imageView1;

    /** Called when the activity is first created. */    
    @Override
    public void onCreate(Bundle savedInstanceState) {    
        super.onCreate(savedInstanceState);    
        setContentView(R.layout.main);

        button1 = (Button)findViewById(R.id.button1);   
        button1.setOnClickListener(this);            
    }

    public void onClick(View v) {    
        // TODO Auto-generated method stub          
        if(v == button1) {    
            Intent myIntent = new Intent(PhoneImageGalleryActivity.this,PhoneImageGalleryActivity.class);
            startActivity(myIntent);                
    }

Answer 1

如果您将图像保存在SD卡中并运行MediaScanner，它将自动出现在画廊中

Answer 2

添加到SD卡的图像已经被MediaScanner扫描过了，你不需要做任何特殊的事情。

缩略图总是在添加图像时创建。这是因为缩略图服务实际上在数据更改时非常频繁/高效地执行此操作。