Animation 将处理程序与带有ViewFlipper的动画结合使用
你好,亲爱的程序员 我正在尝试为一个应用程序制作一个动画菜单,该应用程序在5个viewflipper子对象之间以随机时间间隔随机翻转。在每次翻转之间,我想“插入”一个基于逐帧可绘制的动画。到目前为止,我能够根据对动画方法的调用是在“run”方法的开头还是结尾显示随机翻转或动画。我不知道如何确保它在处理程序每次迭代的“中间”执行 代码如下:Animation 将处理程序与带有ViewFlipper的动画结合使用,animation,random,handler,children,viewflipper,Animation,Random,Handler,Children,Viewflipper,你好,亲爱的程序员 我正在尝试为一个应用程序制作一个动画菜单,该应用程序在5个viewflipper子对象之间以随机时间间隔随机翻转。在每次翻转之间,我想“插入”一个基于逐帧可绘制的动画。到目前为止,我能够根据对动画方法的调用是在“run”方法的开头还是结尾显示随机翻转或动画。我不知道如何确保它在处理程序每次迭代的“中间”执行 代码如下: public class BTG extends Activity { private ViewFlipper fliptest; private Hand
public class BTG extends Activity {
private ViewFlipper fliptest;
private Handler testHandler = new Handler();
private Random mRand = new Random();
private Random timerMenu = new Random();
int randomTime;
AnimationDrawable menuAnimation;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_btg);
fliptest = (ViewFlipper) findViewById(R.id.menuFlipper);
testHandler.postDelayed(mFlip, randomTime);
}
private Runnable mFlip = new Runnable() {
@Override
public void run() {
//if this call is at the beginning, the menu only flips between the 5 first
//children of the viewflipper and the animation is never shown
startAnimation();
randomTime = (timerMenu.nextInt(6) + 1) * 2000;
System.out.println("executes the run method " + randomTime);
fliptest.setDisplayedChild(mRand.nextInt(5));
testHandler.postDelayed(this, (mRand.nextInt(6)+ 1) * 2000);
//if this call is at the end, the menu only displays the animation
//which launches itself after a random time as set in the handler
//startAnimation();
}
class Starter implements Runnable {
public void run() {
menuAnimation.start();
}
}
private void startAnimation() {
System.out.println("The start Animation method is run");
fliptest.setDisplayedChild(5);
menuAnimation = new AnimationDrawable();
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans1), 100);
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans2), 100);
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans3), 100);
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans1), 100);
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans2), 100);
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans3), 100);
menuAnimation.setOneShot(true);
ImageView imageView = (ImageView) findViewById(R.id.menu_animation);
imageView.setImageDrawable(menuAnimation);
imageView.post(new Starter());
}
};
好的,在玩了几小时Stackoverflow之后,我找到了一个可行的解决方案。这是最后的代码。 请随时提出一个“更好”的编程选择,因为这只是我的新手修复
public class BTG extends Activity {
private ViewFlipper fliptest;
private Handler menuHandler = new Handler();
private Random mRand = new Random();
private Random timerMenu = new Random();
int randomTime;
AnimationDrawable menuAnimation;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_btg);
fliptest = (ViewFlipper) findViewById(R.id.menuFlipper);
menuHandler.postDelayed(mFlip, randomTime);
}
private Runnable mFlip = new Runnable() {
@Override
public void run() {
randomTime = (timerMenu.nextInt(6) + 1) * 2000;
System.out.println("executes the run method " + randomTime);
menuHandler.postDelayed(this, randomTime);
startAnimation();
}
};
class Starter implements Runnable {
public void run() {
menuAnimation.start();
}
}
private void startAnimation() {
System.out.println("The start Animation method is run");
fliptest.setDisplayedChild(5);
menuAnimation = new AnimationDrawable();
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans1), 100);
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans2), 100);
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans3), 100);
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans1), 100);
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans2), 100);
menuAnimation.addFrame(getResources().getDrawable(R.drawable.animate_menu_trans3), 100);
menuAnimation.setOneShot(true);
ImageView imageView = (ImageView) findViewById(R.id.menu_animation);
imageView.setImageDrawable(menuAnimation);
imageView.post(new Starter());
Thread timer = new Thread(){
public void run (){
try{
sleep(700);
}catch (InterruptedException e){
e.printStackTrace();
}finally{
System.out.println("the thread sleep works");
runOnUiThread(new Runnable() {
@Override
public void run() {
fliptest.setDisplayedChild(mRand.nextInt(5));
}
});
}
}
};
timer.start();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.beat_the_game, menu);
return true;
}
}