第三方开源库：nineoldandroids右弹出有动画

右弹出无动画特效和有特效2种

效果图：

无动画：       瞬间弹出                                                                                                                             有动画：时长：500ms

1 无动画

思路：

        主布局中有水平排列2个布局，用权重表示，weight=1，width=0dp,其中右侧的默认隐藏，

        点击“显示侧拉”，右侧显示，在点击，右侧消失

布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >

<TextView
android:id="@+id/tv_title"
android:layout_width="match_parent"
android:layout_height="30dp"
android:background="#33666666"
android:text="显示侧拉"
android:gravity="center"/>

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >

<ListView
android:id="@+id/listview"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:dividerHeight="5dp" >
</ListView>

<LinearLayout
android:id="@+id/layout_right"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#0084ff"
android:visibility="gone" >

<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="textView" />
</LinearLayout>
</LinearLayout>

</LinearLayout>

activity代码

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

listView = (ListView) findViewById(R.id.listview);
listView.setAdapter(new LeftAdapter(this));

layout_right = (LinearLayout) findViewById(R.id.layout_right);
tv_title = (TextView) findViewById(R.id.tv_title);

//没有动画效果
tv_title.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
if (isOpen) {
layout_right.setVisibility(View.GONE);
isOpen = false;
} else {
layout_right.setVisibility(View.VISIBLE);
isOpen = true;
}
}
});
}

 

源码；http://download.csdn.net/detail/ss1168805219/9492492

 有动画

        1 导入nineoldandroids-2.4.0.jar，

        2 listView和LinearLayout都要设置valueAnimator

布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >

<TextView
android:id="@+id/tv_title"
android:layout_width="match_parent"
android:layout_height="30dp"
android:background="#33666666"
android:gravity="center"
android:text="显示侧拉" />

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >

<ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:dividerHeight="5dp" >
</ListView>

<LinearLayout
android:id="@+id/layout_right"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#0084ff" >

<TextView
android:id="@+id/tv_right"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="textView" />
</LinearLayout>
</LinearLayout>

</LinearLayout>

 

主要代码：

screenWidth = getWindowManager().getDefaultDisplay().getWidth();//获取屏幕的宽
tv_title.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
if (isOpen) {//设置ValueAnimator值的变化范围
animator =ValueAnimator.ofInt(screenWidth/2,0);
animator2 =ValueAnimator.ofInt(screenWidth/2,screenWidth);
isOpen = false;
} else {
animator =ValueAnimator.ofInt(0,screenWidth/2);
animator2 =ValueAnimator.ofInt(screenWidth,screenWidth/2);
isOpen = true;
}

//listView的动画
animator.addUpdateListener(new AnimatorUpdateListener() {

@Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
int width = (Integer) valueAnimator.getAnimatedValue();//获取变化中的值

layout_right.getLayoutParams().width = width;
layout_right.requestLayout();//让width重新生效
}
});
animator.setDuration(500).start();//开启动画

//有侧拉栏的动画
animator2.addUpdateListener(new AnimatorUpdateListener() {

@Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
int width = (Integer) valueAnimator.getAnimatedValue();
listView.getLayoutParams().width = width;
listView.requestLayout();
}
});
animator2.setDuration(500).start();
}
});

 

 源码：http://download.csdn.net/detail/ss1168805219/9492511

其它

ViewHelper.setScaleX(holder.itemView, 0.3f);
ViewHelper.setScaleY(holder.itemView, 0.3f);
ViewPropertyAnimator.animate(holder.itemView).scaleXBy(0.7f)//by:比上一步的值增加了几倍 ，原来是0.5，增加0.5，还是1
.scaleYBy(0.7f)
// .scaleX(1.0f)//还原正常大小
// .scaleY(1.0f)//
.setInterpolator(new OvershootInterpolator())//默认也是这个
.setDuration(500).start();