android的弹窗和几种动画的用法_2017.09.14

android的弹窗和几种动画的用法

1.AlertDialog的用法：

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1.弹窗：
AlertDialog bulder=new AlertDialog.Builder(this)

            .setTitle("标题" )              .setMessage("简单消息框" )              .setPositiveButton("确定" ,  null )              .show();  

//.setIcon(android.R.drawable.ic_dialog_info) 输入一个文本

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2.单选框：

ew  AlertDialog.Builder(self)  .setTitle("请选择" )  .setIcon(android.R.drawable.ic_dialog_info)                  .setSingleChoiceItems(new  String[] {"选项1", "选项2", "选项3" , "选项4" },  0 ,     new  DialogInterface.OnClickListener() {       public   void  onClick(DialogInterface dialog,  int  which) {          dialog.dismiss();       }    }  )  .setNegativeButton("取消" ,  null )  .show();  

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2.多选宽（）：

 AlertDialog.Builder builder = new AlertDialog.Builder(this);    builder            .setTitle("天王盖地虎")            .setMultiChoiceItems(new String[]{"sd","dsds","dsds"},null,null)            .setPositiveButton("确定", new DialogInterface.OnClickListener() {                @Override                public void onClick(DialogInterface dialogInterface, int i) {                }            })            .setNegativeButton("取消", new DialogInterface.OnClickListener() {                @Override                public void onClick(DialogInterface dialogInterface, int i) {                }            })            .show();

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3.列表框

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new  AlertDialog.Builder(self)  .setTitle("列表框" )  .setItems(new  String[] {"列表项1", "列表项2", "列表项3" },  null )  .setNegativeButton("确定" ,  null )  .show();  

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2.动画：

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1. AlphaAnimation（渐变动画）

    RelativeLayout rl_splash = (RelativeLayout) findViewById(R.id.rl_splash);    //播放动画效果    AlphaAnimation animation = new AlphaAnimation(1.0f, 0.0f);    //设置Alpha动画的持续时间    animation.setDuration(2000);    //播放Alpha动画    rl_splash.setAnimation(animation);

2. RotateAnimation（旋转动画）

    //相对于自身的哪个位置旋转，这里是相对于自身的右下角    RotateAnimation ra = new RotateAnimation(0, 360,  //从哪旋转，旋转多少度            Animation.RELATIVE_TO_SELF, 1.0f, Animation.RELATIVE_TO_SELF,            1.0f);    ra.setDuration(800);    ra.setRepeatCount(Animation.INFINITE);    ra.setRepeatMode(Animation.RESTART);    iv_scan.startAnimation(ra);

3. ScaleAnimation(缩放动画)

    ScaleAnimation(float fromX, float toX, float fromY, float toY)     Constructor to use when building a ScaleAnimation from code

4. TranslateAnimation(位移动画)

    TranslateAnimation(int fromXType, float fromXValue, int toXType, float toXValue, int fromYType, float fromYValue, int toYType, float toYValue)     Constructor to use when building a TranslateAnimation from code

5. AnimationSet (多组动画)

    AnimationSet set = new AnimationSet(false);//如果想播放多种动画的组合，这里就要用到了AnimationSet    set.addAnimation(sa);    set.addAnimation(ta);    contentView.startAnimation(set); // 播放一组动画. 

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9/14/2017 8:02:08 PM