我希望在添加新视图时实现向右移动视图的动画。
我正在使用LayoutTransition.APPEARING的LayoutTransition动画。我在线性布局的第0位添加新视图。
除了从onActivityResult()添加视图的一种情况外,它工作正常。
当我为结果启动Activity并尝试在onActivityResult()方法中添加视图时,视图添加但LayoutTransition动画确实有效。
场景1:活动A为结果启动活动B.活动B setResult()和finish()没有做任何事情。在这种情况下,LayoutTransition动画工作正常。
场景2:活动A为结果启动活动B.活动B有Button。单击按钮活动B setResult()和finish()。在这种情况下,LayoutTransition动画不起作用。
需要输入我出错的地方或实现动画的任何解决方法。
活动A
private LinearLayout ll;
private Button b, addbutton, setResultButton;
private LayoutTransition transitioner;
private Animator defaultAppearingAnim;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test);
ll = (LinearLayout) findViewById(R.id.ll);
transitioner = new LayoutTransition();
defaultAppearingAnim = transitioner
.getAnimator(LayoutTransition.APPEARING);
transitioner.setAnimator(LayoutTransition.APPEARING,
defaultAppearingAnim);
ll.setLayoutTransition(transitioner);
/*Adds Buttons to Linear Layout*/
addbutton = (Button) findViewById(R.id.button1);
addbutton.setOnClickListener(this);
/*Adds Buttons to Linear Layout on onActivityResult method*/
setResultButton = (Button) findViewById(R.id.button2);
setResultButton.setOnClickListener(this);
/*Dummy Button Added here*/
for (int i = 0; i < 2; i++) {
Button b = new Button(this);
b.setText("B " + i);
ll.addView(b);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// Result from Activity B we are adding Button to LinearLayout
super.onActivityResult(requestCode, resultCode, data);
Button b = new Button(this);
b.setText("RT");
ll.addView(b, 0);
}
@Override
public void onClick(View v) {
if (v == setResultButton) {
Intent intent = new Intent(this, ResultActivity.class);
startActivityForResult(intent, 0);
} else if (v == addbutton) {
Button b = new Button(this);
b.setText("T");
ll.addView(b, 0);
}
}
活动B
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.result);
/* SCENARIO 1: LayoutTransition works if the activity setResult and finish
setResult(0);
finish();
*/
/* SCENARIO 2: Here the LayoutTransition animation doesnt work*/
Button setResultButton = (Button) findViewById(R.id.button11);
setResultButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
setResult(0);
finish();
}
});
}
答案 0 :(得分:1)
搞定了
方案2的解决方案:
在这种情况下,我使用post()方法
添加了视图ll.post(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
Button b = new Button(ActivityA.this);
b.setText("RT");
ll.addView(b, 0);
}
});