How to move an image from left to right in android

问题:

I'd like to translate an image from left to right on emulator using android animation. I'm new to android animation. How could I do that?

Thanks.

回答1:

    ll = new LinearLayout(this);
    ll.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
    ll.setOrientation(LinearLayout.VERTICAL);

    tv = new TextView(this);
    tv.setText("Animation");

    moveLefttoRight = new TranslateAnimation(0, 200, 0, 0);
    moveLefttoRight.setDuration(1000);
    moveLefttoRight.setFillAfter(true);

    button = new Button(this);
    button.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
    button.setText("PressMe");
    button.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {
            tv.startAnimation(moveLefttoRight);
        }

    });

    ll.addView(tv);
    ll.addView(button);
    setContentView(ll);

is one way of doing it.

回答2:

Move an image from left to right and right to left by using Android TranslateAnimation

ImageView img_animation = (ImageView) findViewById(R.id.img_animation);

    TranslateAnimation animation = new TranslateAnimation(0.0f, 400.0f,
            0.0f, 0.0f);          //  new TranslateAnimation(xFrom,xTo, yFrom,yTo)
    animation.setDuration(5000);  // animation duration 
    animation.setRepeatCount(5);  // animation repeat count
    animation.setRepeatMode(2);   // repeat animation (left to right, right to left )
    //animation.setFillAfter(true);      

    img_animation.startAnimation(animation);  // start animation 

you can find more details from here

回答3:

Add this code R.anim folder

<?xml version="1.0" encoding="utf-8"?>
<set
xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/linear_interpolator"
android:fillAfter="true">

<translate
    android:fromXDelta="0%p"
    android:toXDelta="100%p"
    android:duration="800" />
</set>