Android通过Movie展示Gif格式图片

概述本文实例为大家分享Android通过Movie展示Gif格式图片的相关代码，供大家参考，具体内容如下

本文实例为大家分享AndroID通过MovIE展示Gif格式图片的相关代码，供大家参考，具体内容如下

public class CommonGifVIEw extends VIEw {  private Resources mResources;  private MovIE mMovIE;  private long startTime = 0;  private float wIDthRatio;  private float heightRatio;  public CommonGifVIEw(Context context) {    this(context,null);  }  public CommonGifVIEw(Context context,AttributeSet attrs) {    this(context,attrs,0);  }  public CommonGifVIEw(Context context,AttributeSet attrs,int defStyleAttr) {    super(context,defStyleAttr);    mResources = context.getResources();    TypedArray ta = context.obtainStyledAttributes(attrs,R.styleable.custom_gif_vIEw);    int src_ID = ta.getResourceID(R.styleable.custom_gif_vIEw_gif_src,-1);    setGifVIEwBg(src_ID);    ta.recycle();  }  /**   * 为VIEw设置gif格式图片背景   * @description：   * @author ldm   * @date 2016-2-18 上午9:21:16   */  private voID setGifVIEwBg(int src_ID) {    if (src_ID == -1) { return; }    // 获取对应资源文件的输入流    inputStream is = mResources.openRawResource(src_ID);    mMovIE = MovIE.decodeStream(is);// 解码输入流为MovIE对象    requestLayout();  }  /*   * 这个方法供Activity中使用   */  public voID setGifStream(inputStream is) {    mMovIE = MovIE.decodeStream(is);    requestLayout();  }  @OverrIDe  protected voID onDraw(Canvas canvas) {    super.onDraw(canvas);    long Now = SystemClock.uptimeMillis();    if (startTime == 0) { // 如果第一帧，记录起始时间      startTime = Now;    }    if (mMovIE != null) {// 如果返回值不等于null，就说明这是一个gif图片      int duration = mMovIE.duration();// 取出动画的时长      if (duration == 0) {        duration = 1000;      }      int currentTime = (int) ((Now - startTime) % duration);// 算出需要显示第几帧      mMovIE.setTime(currentTime);      // mMovIE.draw(canvas,getWIDth() - mMovIE.wIDth(),getHeight() - mMovIE.height());      float scale = Math.min(wIDthRatio,heightRatio);      canvas.scale(scale,scale);      mMovIE.draw(canvas,0);      invalIDate();    }  }  @OverrIDe  protected voID onMeasure(int wIDthMeasureSpec,int heightmeasureSpec) {    if (mMovIE != null) {// 如果返回值不等于null，就说明这是一个gif图片      int w = mMovIE.wIDth();//宽度      int h = mMovIE.height();//高度      if (w <= 0) {        w = 1;      }      if (h <= 0) {        h = 1;      }      int left = getpaddingleft();      int right = getpaddingRight();      int top = getpaddingtop();      int bottom = getpaddingBottom();      int wIDthSize,heightSize;      w += left + right;      h += top + bottom;      w = Math.max(w,getSuggestedMinimumWIDth());      h = Math.max(h,getSuggestedMinimumHeight());      wIDthSize = resolveSizeAndState(w,wIDthMeasureSpec,0);//根据你提供的大小和MeasureSpec，返回你想要的大小值      heightSize = resolveSizeAndState(h,heightmeasureSpec,0);      wIDthRatio = (float) wIDthSize / w;      heightRatio = (float) heightSize / h;      setMeasuredDimension(wIDthSize,heightSize);    }    else {      super.onMeasure(wIDthMeasureSpec,heightmeasureSpec);    }  }}

自定义属性res/values/attrs.xml文件：

<?xml version="1.0" enCoding="utf-8"?><resources>  <declare-styleable name="custom_gif_vIEw">    <attr name="gif_src" format="reference"></attr>  </declare-styleable></resources>

在Activity中使用：

public class MainActivity extends Activity {  private CommonGifVIEw vIEw;  private inputStream is;  @OverrIDe  protected voID onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentVIEw(R.layout.activity_main);    vIEw = (CommonGifVIEw) findVIEwByID(R.ID.gif_test);    try {      is = getAssets().open("test01.gif");      vIEw.setGifStream(is);    }    catch (IOException e) {      e.printstacktrace();    }  }}

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