Android的翻译动画像交换两种观点 [英] Android Translate Animation like Swapping Two Views
本文介绍了Android的翻译动画像交换两种观点的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我试图模拟交换两种观点（一个上升和那些下去）与翻译动画。
I'm trying to simulate swapping two views (one goes up and ones go down) with Translate animation.
基本上，交换，并再次重新插拔。
Basically, it swaps and re-swap again.
这是我的活动。
LinearLayout topView, belowView;
TextView foo, bar;
int viewHeight;
boolean noSwap = true;
private static int ANIMATION_DURATION = 3000;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_slide);
topView = (LinearLayout) findViewById(R.id.top_view);
belowView = (LinearLayout) findViewById(R.id.below_view);
foo = (TextView) findViewById(R.id.foo);
bar = (TextView) findViewById(R.id.bar);
ImageButton btnSwitch = (ImageButton) findViewById(R.id.switch_btn);
ViewTreeObserver viewTreeObserver = foo.getViewTreeObserver();
if (viewTreeObserver.isAlive()) {
viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
foo.getViewTreeObserver().addOnGlobalLayoutListener(this);
viewHeight = foo.getHeight();
foo.getLayoutParams();
}
});
}
btnSwitch.setOnClickListener(new View.OnClickListener() {
@Override public void onClick(View v) {
if (noSwap) {
//Log.d("Swap Status", "Not Swapping yet ? " + true);
TranslateAnimation ta1 = new TranslateAnimation(0, 0, 0, viewHeight);
ta1.setDuration(ANIMATION_DURATION);
ta1.setFillAfter(true);
topView.startAnimation(ta1);
topView.bringToFront();
belowView.setY(0);
TranslateAnimation ta2 = new TranslateAnimation(0, 0, 0, -viewHeight);
ta2.setDuration(ANIMATION_DURATION);
ta2.setFillAfter(true);
belowView.startAnimation(ta2);
belowView.bringToFront();
noSwap = false;
} else {
//Log.d("Swap Status", "Swapped already ? " + true);
TranslateAnimation ta1 = new TranslateAnimation(0, 0, viewHeight, 0);
ta1.setDuration(ANIMATION_DURATION);
ta1.setFillAfter(true);
topView.startAnimation(ta1);
topView.bringToFront();
belowView.setY(0);
TranslateAnimation ta2 = new TranslateAnimation(0, 0, 0, viewHeight);
ta2.setDuration(ANIMATION_DURATION);
ta2.setFillAfter(true);
belowView.startAnimation(ta2);
belowView.bringToFront();
noSwap = true;
}
}
});
}
这是布局。
<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"
tools:context="${packageName}.${activityClass}">
<LinearLayout
android:id="@+id/top_view"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/foo"
android:text="@string/foo"
android:textSize="30sp"
android:textColor="@android:color/holo_purple"
android:padding="10dp"
android:fontFamily="sans-serif-condensed"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
<LinearLayout
android:id="@+id/below_view"
android:layout_below="@+id/top_view"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/bar"
android:text="@string/bar"
android:textSize="30sp"
android:textColor="@android:color/holo_red_light"
android:padding="10dp"
android:fontFamily="sans-serif-condensed"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
<ImageButton android:id="@+id/switch_btn"
style="?android:borderlessButtonStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="@drawable/ic_action_import_export"
android:contentDescription="@string/swap"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"/>
</RelativeLayout>
一切似乎都很好，直到我点击开关按钮，第三次当上来看应该下去，下面的观点是向上走。但是，下面的视图的起始位置是不正确的。我试过设置多个职位，以低于看法，但仍无法得到它的权利。
Everything seems fine until I click the Switch button for third times when the top view is supposed to go down and below view is to go up. But the starting position of the below view is not correct. I've tried setting several positions to below view but still can't get it right.
这件事这里我做了截屏。
推荐答案
我觉得我得到它的权利。下面是工人阶级。
I think I get it right. Here's the working class.
LinearLayout topView, belowView;
TextView foo, bar;
int viewHeight;
boolean noSwap = true;
private static int ANIMATION_DURATION = 300;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_slide);
topView = (LinearLayout) findViewById(R.id.top_view);
belowView = (LinearLayout) findViewById(R.id.below_view);
foo = (TextView) findViewById(R.id.foo);
bar = (TextView) findViewById(R.id.bar);
ImageButton btnSwitch = (ImageButton) findViewById(R.id.switch_btn);
ViewTreeObserver viewTreeObserver = foo.getViewTreeObserver();
if (viewTreeObserver.isAlive()) {
viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
foo.getViewTreeObserver().addOnGlobalLayoutListener(this);
viewHeight = foo.getHeight();
foo.getLayoutParams();
}
});
}
btnSwitch.setOnClickListener(new View.OnClickListener() {
@Override public void onClick(View v) {
if (noSwap) {
TranslateAnimation ta1 = new TranslateAnimation(0, 0, 0, viewHeight);
ta1.setDuration(ANIMATION_DURATION);
ta1.setFillAfter(true);
topView.startAnimation(ta1);
topView.bringToFront();
TranslateAnimation ta2 = new TranslateAnimation(0, 0, 0, -viewHeight);
ta2.setDuration(ANIMATION_DURATION);
ta2.setFillAfter(true);
belowView.startAnimation(ta2);
belowView.bringToFront();
noSwap = false;
} else {
TranslateAnimation ta1 = new TranslateAnimation(0, 0, viewHeight, 0);
ta1.setDuration(ANIMATION_DURATION);
ta1.setFillAfter(true);
topView.startAnimation(ta1);
topView.bringToFront();
TranslateAnimation ta2 = new TranslateAnimation(0, 0, -viewHeight, 0);
ta2.setDuration(ANIMATION_DURATION);
ta2.setFillAfter(true);
belowView.startAnimation(ta2);
belowView.bringToFront();
noSwap = true;
}
}
});
}
这篇关于Android的翻译动画像交换两种观点的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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