我已经编写了用于显示单个图像动画的代码。现在我想在网格视图中显示gif图像以显示这些动画图像。是否有可能,并且如何实现?
我已经编写了用于显示单个图像动画的代码。现在我想在网格视图中显示gif图像以显示这些动画图像。是否有可能,并且如何实现?
我认为这可能会对你有所帮助.. 这是一个GifWebView演示.. 请查看它...
mylayout.xml
<RelativeLayout 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" >
<LinearLayout
android:id="@+id/toplayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
</LinearLayout>
</RelativeLayout>
MyLayout.java文件
package com.test;
import android.app.Activity;
import android.os.Bundle;
import android.widget.LinearLayout;
public class MainActivity extends Activity
{
LinearLayout toplayout;
GifWebView view;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.mylayout);
toplayout = (LinearLayout)findViewById(R.id.toplayout);
InputStream stream = null;
try
{
stream = getAssets().open("ppp.gif");
} catch (IOException e) {
e.printStackTrace();
}
view = new GifWebView(this, stream);
toplayout.addView(view);
}
}
GifWebView.java 文件
package com.test;
import android.content.Context;
import java.io.InputStream;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Movie;
import android.os.SystemClock;
import android.view.View;
public class GifWebView extends View {
private Movie mMovie;
InputStream mStream;
long mMoviestart;
public GifWebView(Context context, InputStream stream) {
super(context);
mStream = stream;
mMovie = Movie.decodeStream(mStream);
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.TRANSPARENT);
super.onDraw(canvas);
final long now = SystemClock.uptimeMillis();
if (mMoviestart == 0) {
mMoviestart = now;
}
final int relTime = (int) ((now - mMoviestart) % mMovie.duration());
mMovie.setTime(relTime);
mMovie.draw(canvas, 10, 10);
this.invalidate();
}
}