Android開發之TextView垂直顯示List列表數據

自定義控件

packagecom.nskj.zhiyinglicai.myView;

importandroid.content.Context;

importandroid.content.res.TypedArray;

importandroid.graphics.Camera;

importandroid.graphics.Color;

importandroid.graphics.Matrix;

importandroid.util.AttributeSet;

importandroid.view.Gravity;

importandroid.view.View;

importandroid.view.animation.AccelerateInterpolator;

importandroid.view.animation.Animation;

importandroid.view.animation.Transformation;

importandroid.widget.TextSwitcher;

importandroid.widget.TextView;

importandroid.widget.ViewSwitcher;

importcom.nskj.zhiyinglicai.R;

/**

*TODO 向上滾動TextView

*

*@authorZhaoQy

*/

public classScollViewTextView extends TextSwitcher implementsViewSwitcher.ViewFactory {

private floatmHeight;

privateContext mContext;

// mInUp,mOutUp分別構成向下翻頁的進出動畫

privateRotate3dAnimation mInUp;

privateRotate3dAnimation mOutUp;

// mInDown,mOutDown分別構成向下翻頁的進出動畫

privateRotate3dAnimation mInDown;

privateRotate3dAnimation mOutDown;

publicScollViewTextView(Context context) {

this(context,null);

}

publicScollViewTextView(Context context, AttributeSet attrs) {

super(context, attrs);

TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.auto3d);

mHeight=20;

a.recycle();

mContext= context;

init();

}

private voidinit() {

setFactory(this);

mInUp= createAnim(true,true);

mOutUp= createAnim(false,true);

// TextSwitcher主要用於文件切換，比如 從文字A 切換到 文字 B，

// setInAnimation()後，A將執行inAnimation，

// setOutAnimation()後，B將執行OutAnimation

setInAnimation(mInUp);

setOutAnimation(mOutUp);

}

privateRotate3dAnimation createAnim(booleanturnIn,booleanturnUp) {

finalRotate3dAnimation rotation =newRotate3dAnimation(turnIn, turnUp);

// 動畫持續時間

rotation.setDuration(300);

rotation.setFillAfter(false);

rotation.setInterpolator(newAccelerateInterpolator());

returnrotation;

}

// 這裏返回的TextView，就是我們看到的View

@Override

publicView makeView() {

TextView t =newTextView(mContext);

t.setGravity(Gravity.LEFT);

t.setTextSize(16);

t.setMaxLines(1);

t.setPadding(0,5,0,5);

// 設置文字顏色

t.setTextColor(Color.WHITE);

returnt;

}

// 定義動作，向下滾動翻頁

public voidprevious() {

if(getInAnimation() != mInDown) {

setInAnimation(mInDown);

}

if(getOutAnimation() != mOutDown) {

setOutAnimation(mOutDown);

}

}

// 定義動作，向上滾動翻頁

public voidnext() {

if(getInAnimation() != mInUp) {

setInAnimation(mInUp);

}

if(getOutAnimation() != mOutUp) {

setOutAnimation(mOutUp);

}

}

classRotate3dAnimationextendsAnimation {

private floatmCenterX;

private floatmCenterY;

private final booleanmTurnIn;

private final booleanmTurnUp;

privateCameramCamera;

publicRotate3dAnimation(booleanturnIn,booleanturnUp) {

mTurnIn= turnIn;

mTurnUp= turnUp;

}

@Override

public voidinitialize(intwidth,intheight,intparentWidth,intparentHeight) {

super.initialize(width, height, parentWidth, parentHeight);

mCamera=newCamera();

mCenterY= getHeight() / 2;

mCenterX= getWidth() / 2;

}

@Override

protected voidapplyTransformation(floatinterpolatedTime, Transformation t) {

final floatcenterX = mCenterX;

final floatcenterY = mCenterY;

finalCamera camera = mCamera;

final intderection = mTurnUp?1: -1;

finalMatrix matrix = t.getMatrix();

camera.save();

if(mTurnIn) {

camera.translate(0.0f, derection *mCenterY* (interpolatedTime - 1.0f),0.0f);

}else{

camera.translate(0.0f, derection *mCenterY* (interpolatedTime), 0.0f);

}

camera.getMatrix(matrix);

camera.restore();

matrix.preTranslate(-centerX, -centerY);

matrix.postTranslate(centerX, centerY);

}

}

}

xml文件

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="horizontal">

<com.nskj.zhiyinglicai.myView.ScollViewTextView

android:id="@+id/tv_integral_draw_message"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text=""

android:textStyle="bold"

android:gravity="center|left"

android:layout_marginLeft="10dp"

android:textColor="@android:color/white"

android:orientation="vertical"/>

</LinearLayout>

JavaBean文件

importjava.io.Serializable;

public classDrawMessageimplementsSerializable {

privateStringname;

privateStringmessage;

publicDrawMessage() {

}

publicDrawMessage(String name, String message) {

this.name= name;

this.message= message;

}

publicString getName() {

returnname;

}

public voidsetName(String name) {

this.name= name;

}

publicString getMessage() {

returnmessage;

}

public voidsetMessage(String message) {

this.message= message;

}

}

activity中應用

public classIntegralDrawActivityextendsCommonActivity {

private List<DrawMessage> drawMessageList;

private int mTextCount;

private Handler mHandler=newHandler();

List<String> list;

@Override

protected voidonCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_integral_draw);

initView();

}

public void initView(){

drawMessageList=newArrayList<>();

drawMessageList.add(newDrawMessage("陌xx","電視機"));

drawMessageList.add(newDrawMessage("陌78","電視機4259"));

drawMessageList.add(newDrawMessage("陌37656","電視45686機"));

drawMessageList.add(newDrawMessage("陌15638+","電576視機"));

for (inti =0; i <drawMessageList.size(); i++){

String str =drawMessageList.get(i).getName() +"：獲得"+drawMessageList.get(i).getMessage();

list.add(str);

}

mTextCount=list.size();

mHandler.postDelayed(runnable,2000);

}

Runnable runnable=newRunnable() {

@Override

public voidrun() {

tv_integral_draw_message.next();

mTextCount++;

if(mTextCount>= Integer.MAX_VALUE){

mTextCount=list.size();

}

tv_integral_draw_message.setText(list.get(mTextCount% (list.size())));

if(list.size() >1) {

mHandler.postDelayed(this,2000);

}

}

};

}