public class MainActivity extends Activity {
ImageView image;
Button start;
Button cancel;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
image = (ImageView) findViewById(R.id.main_img);
start = (Button) findViewById(R.id.main_start);
cancel = (Button) findViewById(R.id.main_cancel);
/** 設(shè)置透明度漸變動畫 */
final AlphaAnimation animation = new AlphaAnimation(1, 0);
animation.setDuration(2000);//設(shè)置動畫持續(xù)時間
/** 常用方法 */
//animation.setRepeatCount(int repeatCount);//設(shè)置重復(fù)次數(shù)
//animation.setFillAfter(boolean);//動畫執(zhí)行完后是否停留在執(zhí)行完的狀態(tài)
//animation.setStartOffset(long startOffset);//執(zhí)行前的等待時間
start.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
image.setAnimation(animation);
/** 開始動畫 */
animation.startNow();
}
});
cancel.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
/** 結(jié)束動畫 */
animation.cancel();
}
});
}
}<SPAN style="COLOR: #333333; FONT-FAMILY: Microsoft YaHei"><SPAN style="FONT-SIZE: 14px; LINE-HEIGHT: 26px">
</SPAN></SPAN>