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android 给LinearLayout中添加一定数量的控件,并让着一定数量的控件从右到左移动,每隔若干秒停顿一下,最后一个view链接第一个view,然后继续移动循环往复,形成一个死循环简单动画效果

2014-09-22 15:56 931 查看
主类:IndexAnimationLinearLayout.java

package com.yw.sortlistview;

import java.util.ArrayList;
import java.util.List;

import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Canvas;
import android.os.Handler;
import android.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;

import com.yw.sortlistview.bean.AnimationBean;

/**
* 移动动画
*
* @author tony
*
*/
@SuppressLint("NewApi")
public class IndexAnimationLinearLayout extends LinearLayout {
// 外层循环
private boolean flag = true;
// 内层if
private boolean flagIf = true;
private Context context;
private List<AnimationBean> datas  = new ArrayList<AnimationBean>();
public IndexAnimationLinearLayout(Context context) {
super(context);
this.context = context;
}

public IndexAnimationLinearLayout(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
}

public IndexAnimationLinearLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
this.context = context;
}
public void setResource(List<AnimationBean> datas){
this.datas = datas;
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);

}

// 粗略
private int var = 5;

/**
* 移动子控件
*/
public void moveChild() {
// 获取布局中的控件个数
int count = this.getChildCount();
View first = this.getChildAt(0);
for (int i = 0; i < count; i++) {
if (first.getRight() <= 0) {
this.removeView(first);
this.addView(first, this.getChildCount());
onStop();
/**
* 控件停止滚动时切换到不同的视图
*/
if (callback != null) {
callback.stop();
}
} else {
/*
* 左、上、右、下 控制上下不变,左右改变
*/
View view = this.getChildAt(i);
view.layout(view.getLeft() - var, view.getTop(),
view.getRight() - var, view.getBottom());
// 如果view不再Layout范围,则移除
Log.e("view.getRight", view.getRight() + "");
Log.e("this.getLeft", this.getLeft() + "");
}

}
}

public void start(int w) {
//向集合中添加数据
if(datas != null && datas.size()>0){
for(int i=0;i<datas.size();i++){
Log.e("startview", "startview");
ImageView img = (ImageView)LayoutInflater.from(context).inflate(R.layout.item, null);
img.setImageResource(datas.get(i).getResId());
/*img.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT));*/
img.setLayoutParams(new LinearLayout.LayoutParams(
w,
w));
Log.e("endview", "endview");
Log.e("resid", datas.get(i).getResId()+"dd");
this.addView(img);
}
}
new Thread() {
public void run() {
try {
while (flag) {
if (flagIf) {
Thread.sleep(200);
handler.sendEmptyMessage(0);
}
}

} catch (Exception e) {
e.printStackTrace();
}
};
}.start();
}
public void stop() {
flagIf = false;
flag = false;
}
private void onStop() {
//        Toast.makeText(context, "暂停三秒试试看", Toast.LENGTH_LONG).show();
new Thread() {
public void run() {
try {
flagIf = false;
Thread.sleep(2000);
flagIf = true;
} catch (Exception e) {
e.printStackTrace();
}
};
}.start();
}

Handler handler = new Handler() {
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case 0:
moveChild();
break;
}
};
};
private MyLinearLayoutCallBack callback;

public void setMyLinearLayoutCallBack(MyLinearLayoutCallBack callback) {
this.callback = callback;
}

public interface MyLinearLayoutCallBack {

public void stop();
}
}


使用类:LayoutAnimationActivity.java

package com.yw.sortlistview;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Display;
import android.view.WindowManager;
import android.widget.TextView;
import android.widget.Toast;

import com.yw.sortlistview.IndexAnimationLinearLayout.MyLinearLayoutCallBack;
import com.yw.sortlistview.bean.AnimationBean;

/**
* 控件循环滚动
*
* @author tony
*
*/
public class LayoutAnimationActivity extends Activity implements
MyLinearLayoutCallBack {
private IndexAnimationLinearLayout linear;
private TextView tv_title;
private List<AnimationBean> datas = new ArrayList<AnimationBean>();
private int w = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layoutanimation_layout);
linear = (IndexAnimationLinearLayout) findViewById(R.id.layoutanimation_linear);
linear.setMyLinearLayoutCallBack(this);
tv_title = (TextView)findViewById(R.id.layoutanimation_tv_title);

getScreenHW(this);

}
public void getScreenHW(Context context){
WindowManager manager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
Display display = manager.getDefaultDisplay();
int width =display.getWidth();
int height=display.getHeight();
w = (int)width/8;
}
/**
* 开始动画
*/
@Override
protected void onResume() {
super.onResume();
for(int i=0;i<10;i++){
AnimationBean bean = new AnimationBean();
bean.setId(i+"");
bean.setResId(R.drawable.ic_launcher);
datas.add(bean);
}
linear.setResource(datas);
linear.start(w);
}
/**
* 暂停动画
*/
protected void onStop() {
super.onStop();
linear.stop();
}
/**
* 动画停止时的回调函数
*/
@Override
public void stop() {
tv_title.setText("");
Toast.makeText(this, "暂停三秒试试看", Toast.LENGTH_LONG).show();
};
}


在xml中的使用方法:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical" >

<com.yw.sortlistview.IndexAnimationLinearLayout
android:id="@+id/layoutanimation_linear"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#ffff99"
android:orientation="horizontal" >

</com.yw.sortlistview.IndexAnimationLinearLayout>
<TextView
android:id="@+id/layoutanimation_tv_title"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_marginTop="10dp"
android:text="第一个"
/>
</LinearLayout>


结束。
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