Question

在下面的示例中，有一个带有输入字段和按钮的布局。用户将输入0到10之间的数字，并且鳍状肢将从屏幕10动画到输入的数字。

如果我在onClick上注释 for（int i = 10; .....; i - ）{，每次单击按钮时屏幕都会滑动。如果我在屏幕中放入for循环直接进入屏幕编号而不滑动每个屏幕。循环过快，动画无法追赶。

是否可以拥有它，以便如果你输入2，例如鳍状肢将会：

Flipper 10

发生幻灯片动画

Flipper 9

发生幻灯片动画

鳍状肢8 .....

主要活动：



package com.jk.flippertest;

import com.jk.flippertest.R;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ViewFlipper;

public class FlipperTestActivity extends Activity {
/** Called when the activity is first created. */
private Animation slideRightIn;
private Animation slideRightOut;
private ViewFlipper viewFlipper;
TextView loopNumber;
int loopValue;
Button goBtn;
ViewFlipper fSpace;
LayoutInflater inflater;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    loopNumber = (TextView)findViewById(R.id.editText1);
    goBtn = (Button)findViewById(R.id.button1);       

    fSpace = (ViewFlipper)findViewById(R.id.viewFlipper1);
    inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    for (int i=0;i<11;i++){
        TextView tvi = new TextView(this);
        tvi.setText("Flipper "+i);
        tvi.setTextSize(50);
        tvi.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));

        LinearLayout lli = new LinearLayout(this);
        lli = new LinearLayout(this);
        lli.setOrientation(LinearLayout.VERTICAL);
        lli.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
        lli.addView(tvi);

        fSpace.addView(lli);
        }

        viewFlipper = (ViewFlipper)findViewById(R.id.viewFlipper1);
        slideRightIn = AnimationUtils.loadAnimation(this, R.anim.slide_right_in);
        slideRightOut = AnimationUtils.loadAnimation(this, R.anim.slide_right_out);

        goBtn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub

                Toast.makeText(getBaseContext(), "Value is "+loopNumber.getText(), Toast.LENGTH_LONG).show();
                for(int i=10;i>=Integer.parseInt(loopNumber.getText().toString());i--){
                viewFlipper.setInAnimation(slideRightIn);
                viewFlipper.setOutAnimation(slideRightOut);                     
                viewFlipper.showPrevious();
                }
            }
        });

}


}

package com.jk.flippertest; import com.jk.flippertest.R; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup.LayoutParams; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.Button; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast; import android.widget.ViewFlipper; public class FlipperTestActivity extends Activity { /** Called when the activity is first created. */ private Animation slideRightIn; private Animation slideRightOut; private ViewFlipper viewFlipper; TextView loopNumber; int loopValue; Button goBtn; ViewFlipper fSpace; LayoutInflater inflater; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); loopNumber = (TextView)findViewById(R.id.editText1); goBtn = (Button)findViewById(R.id.button1); fSpace = (ViewFlipper)findViewById(R.id.viewFlipper1); inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); for (int i=0;i<11;i++){ TextView tvi = new TextView(this); tvi.setText("Flipper "+i); tvi.setTextSize(50); tvi.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); LinearLayout lli = new LinearLayout(this); lli = new LinearLayout(this); lli.setOrientation(LinearLayout.VERTICAL); lli.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); lli.addView(tvi); fSpace.addView(lli); } viewFlipper = (ViewFlipper)findViewById(R.id.viewFlipper1); slideRightIn = AnimationUtils.loadAnimation(this, R.anim.slide_right_in); slideRightOut = AnimationUtils.loadAnimation(this, R.anim.slide_right_out); goBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub Toast.makeText(getBaseContext(), "Value is "+loopNumber.getText(), Toast.LENGTH_LONG).show(); for(int i=10;i>=Integer.parseInt(loopNumber.getText().toString());i--){ viewFlipper.setInAnimation(slideRightIn); viewFlipper.setOutAnimation(slideRightOut); viewFlipper.showPrevious(); } } }); }

主要布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    <EditText
        android:id="@+id/editText1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" android:hint="Enter numb between 0 to 10.">
        <requestFocus />
    </EditText>

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Go" />

    <ViewFlipper
        android:id="@+id/viewFlipper1"
        android:layout_width="match_parent"
        android:layout_height="fill_parent" >
    </ViewFlipper>

</LinearLayout>

slide_right_in.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <EditText android:id="@+id/editText1" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="Enter numb between 0 to 10."> <requestFocus /> </EditText> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Go" /> <ViewFlipper android:id="@+id/viewFlipper1" android:layout_width="match_parent" android:layout_height="fill_parent" > </ViewFlipper> </LinearLayout>

slide_right_out.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate android:fromXDelta="-100%p" android:toXDelta="0" android:duration="800"/>
</set>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate android:fromXDelta="-100%p" android:toXDelta="0" android:duration="800"/>
</set>

Answer 1

你为什么玩循环，只需使用Timer并延迟时间（1秒......），只需更改你的视图（幻灯片）。

修改

CountDownTimer

Updating the UI from a Timer

Answer 2

感谢链接，但我看不到如何使用Timer。我在处理程序上找到了一些例子并使用了它。下面的代码似乎有效，但不确定我是否100％正确。



            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                loopToNumber();
            }
        });
}
protected void loopToNumber() {
    // TODO Auto-generated method stub
    new Thread() {
        public void run() {
            for(int i=10;i>=Integer.parseInt(loopNumber.getText().toString());i--){ 
            try {
                Thread.sleep(1600);
                } catch (InterruptedException e) {
                }
            delayHandler.sendEmptyMessage(0);
            }
        }
    }.start();
}
private Handler delayHandler = new Handler() {  
    public void handleMessage(Message msg) {
        super.handleMessage(msg);
        viewFlipper.setInAnimation(slideRightIn);
        viewFlipper.setOutAnimation(slideRightOut);                     
        viewFlipper.showPrevious();
    }
};

@Override public void onClick(View arg0) { // TODO Auto-generated method stub loopToNumber(); } }); } protected void loopToNumber() { // TODO Auto-generated method stub new Thread() { public void run() { for(int i=10;i>=Integer.parseInt(loopNumber.getText().toString());i--){ try { Thread.sleep(1600); } catch (InterruptedException e) { } delayHandler.sendEmptyMessage(0); } } }.start(); } private Handler delayHandler = new Handler() { public void handleMessage(Message msg) { super.handleMessage(msg); viewFlipper.setInAnimation(slideRightIn); viewFlipper.setOutAnimation(slideRightOut); viewFlipper.showPrevious(); } };

你能根据用户条目循环一个鳍状肢动画吗？

2 个答案: