Android Button的基本用法详解及简单实例

  mButtonBack.setOnClickListener(new OnClickListener() {      @Override      public void onClick(View arg0) {        Log.e("================", "MenuBackBtnListen");        MenuimageView.setVisibility(View.INVISIBLE);        mButtonBack.setVisibility(View.INVISIBLE);        buttonCmdLl.setVisibility(View.INVISIBLE);        mLabel.setVisibility(View.INVISIBLE);      }    });

   mButtonBack.setOnTouchListener(new View.OnTouchListener() {      InputStream is = null;      @Override      public boolean onTouch(View arg0, MotionEvent event) {        if(event.getAction() == MotionEvent.ACTION_DOWN){          try {            is = asm.open("ReturnBtnPress.png");          } catch (IOException e) {            e.printStackTrace();          }        }else if(event.getAction() == MotionEvent.ACTION_UP){          try {            is = asm.open("ReturnBtnNormal.png");          } catch (IOException e) {            e.printStackTrace();          }        }        mButtonBack.setBackground(Drawable.createFromStream(is, null));        return false;      }    });

private AssetManager asm;asm=getAssets();