【www.bbyears.com--说说】
代码很简单,主要就是几个动画而已,图标什么的就随便找了几个,效果图:
动画说明:
1.点击右上角按钮,菜单从顶部下拉弹出,同时背景变暗;
2.再次点击右上角按钮,点击返回键,或者点击空白区域(也就是变暗的部分),菜单向上收回;
3.点击菜单上的按钮响应事件,同时菜单收回(效果同2)
重要说明：动画结束后必须clearAnimation，否则隐藏状态的view依然能响应点击事件
主体代码:
代码如下publicclassMainActivityextendsActivity {
//添加数据按钮
privateImageView addDataIv;
//下拉功能菜单
privateLinearLayout dropDownView;
privateView bgView;
//当前下拉菜单是否为显示状态
privatebooleanshowItems =false;
@Override
protectedvoidonCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addDataIv = (ImageView) findViewById(R.id.main_newData);
dropDownView = (LinearLayout) findViewById(R.id.dropDownView);
bgView = findViewById(R.id.main_bg);
addDataIv.setOnClickListener(newView.OnClickListener() {
@Override
publicvoidonClick(View v) {
if(!showItems) {
showView();
}else{
dismissView();
}
}
});
//点击空白隐藏弹出框
bgView.setOnClickListener(newView.OnClickListener() {
@Override
publicvoidonClick(View v) {
if(showItems) {
dismissView();
}
}
});
//下拉功能菜单上按钮的点击事件
View.OnClickListener l =newOnClickImpl();
findViewById(R.id.dropDown_item1).setOnClickListener(l);
findViewById(R.id.dropDown_item2).setOnClickListener(l);
findViewById(R.id.dropDown_item3).setOnClickListener(l);
findViewById(R.id.dropDown_item4).setOnClickListener(l);
}
//显示下拉菜单
privatevoidshowView() {
showItems =true;
addDataIv.startAnimation(AnimationUtils.loadAnimation(MainActivity.this, R.anim.rotate_open));
dropDownView.startAnimation(AnimationUtils.loadAnimation(this, R.anim.drop_down));
dropDownView.setVisibility(View.VISIBLE);
bgView.startAnimation(AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_dark));
bgView.setVisibility(View.VISIBLE);
}
//隐藏下拉菜单
privatevoiddismissView() {
showItems =false;
addDataIv.startAnimation(AnimationUtils.loadAnimation(MainActivity.this, R.anim.rotate_close));
Animation dropUpAnim = AnimationUtils.loadAnimation(this, R.anim.drop_up);
dropUpAnim.setAnimationListener(newAnimListenerImpl(dropDownView));
dropDownView.startAnimation(dropUpAnim);
dropDownView.setVisibility(View.INVISIBLE);
Animation fadeLightAnim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_light);
fadeLightAnim.setAnimationListener(newAnimListenerImpl(bgView));
bgView.startAnimation(fadeLightAnim);
bgView.setVisibility(View.INVISIBLE);
}
//点击返回键时，如果下拉菜单是显示状态，则隐藏它
@Override
publicvoidonBackPressed() {
if(showItems) {
dismissView();
return;
}
super.onBackPressed();
}
privateclassOnClickImplimplementsView.OnClickListener {
@Override
publicvoidonClick(View v) {
if(!showItems) {
return;
}
intid = v.getId();
switch(id) {
caseR.id.dropDown_item1:
Toast.makeText(MainActivity.this,"item1 onClick", Toast.LENGTH_SHORT).show();
dismissView();
break;
caseR.id.dropDown_item2:
Toast.makeText(MainActivity.this,"item2 onClick", Toast.LENGTH_SHORT).show();
dismissView();
break;
caseR.id.dropDown_item3:
Toast.makeText(MainActivity.this,"item3 onClick", Toast.LENGTH_SHORT).show();
dismissView();
break;
caseR.id.dropDown_item4:
Toast.makeText(MainActivity.this,"item4 onClick", Toast.LENGTH_SHORT).show();
dismissView();
break;
default:
break;
}
}
}
//动画结束后必须clearAnimation，否则隐藏状态的view依然能响应点击事件
privateclassAnimListenerImplimplementsAnimation.AnimationListener {
privateView view;
publicAnimListenerImpl(View view) {
this.view = view;
}
@Override
publicvoidonAnimationStart(Animation animation) {
}
@Override
publicvoidonAnimationEnd(Animation animation) {
view.clearAnimation();
}
@Override
publicvoidonAnimationRepeat(Animation animation) {
}
}
}