Question

i friends.. i am able to move image using finger touch over a view but now i want to move text view rather then image but unable to do that..can i treat text view as image ..means if ill be able to convert text-view in to image then i will pass image object ..my code for moving image in view are below:

      public class MainGamePanel extends SurfaceView implements
    SurfaceHolder.Callback {

private static final String TAG = MainGamePanel.class.getSimpleName();

private MainThread thread;
private Droid droid;

public MainGamePanel(Context context) {
    super(context);
    // adding the callback (this) to the surface holder to intercept events
    getHolder().addCallback(this);

    // create droid and load bitmap
    droid = new Droid(BitmapFactory.decodeResource(getResources(), R.drawable.droid_1), 50, 50);

    // create the game loop thread
    thread = new MainThread(getHolder(), this);

    // make the GamePanel focusable so it can handle events
    setFocusable(true);
时 时

@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
        int height) {
时 时

@Override
public void surfaceCreated(SurfaceHolder holder) {
    // at this point the surface is created and
    // we can safely start the game loop
    thread.setRunning(true);
    thread.start();
时 时

@Override
public void surfaceDestroyed(SurfaceHolder holder) {
    Log.d(TAG, "Surface is being destroyed");
    // tell the thread to shut down and wait for it to finish
    // this is a clean shutdown
    boolean retry = true;
    while (retry) {
        try {
            thread.join();
            retry = false;
        时 时 catch (InterruptedException e) {
            // try again shutting down the thread
        时 时
    时 时
    Log.d(TAG, "Thread was shut down cleanly");
时 时

@Override
public boolean onTouchEvent(MotionEvent event) {
    if (event.getAction() == MotionEvent.ACTION_DOWN) {
        // delegating event handling to the droid
        droid.handleActionDown((int)event.getX(), (int)event.getY());

        // check if in the lower part of the screen we exit
        if (event.getY() > getHeight() - 50) {
            thread.setRunning(false);
            ((Activity)getContext()).finish();
        时 时 else {
            Log.d(TAG, "Coords: x=" + event.getX() + ",y=" + event.getY());
        时 时
    时 时 if (event.getAction() == MotionEvent.ACTION_MOVE) {
        // the gestures
        if (droid.isTouched()) {
            // the droid was picked up and is being dragged
            droid.setX((int)event.getX());
            droid.setY((int)event.getY());
        时 时
    时 时 if (event.getAction() == MotionEvent.ACTION_UP) {
        // touch was released
        if (droid.isTouched()) {
            droid.setTouched(false);
        时 时
    时 时
    return true;
时 时

@Override
protected void onDraw(Canvas canvas) {
    // fills the canvas with black
    canvas.drawColor(Color.BLACK);
    droid.draw(canvas);
时 时

时时

Answer 1

实现此目的的一个简单办法是在您的 < code> TextView 中添加 < code> onTouchliarer , 将视图移动到移动事件的位置。

moveableText.setOnTouchListener(new OnTouchListener() {

    @Override
    public boolean onTouch(View v, MotionEvent event) {
            
        if (event.getAction() == MotionEvent.ACTION_MOVE) {
            // Offsets are for centering the TextView on the touch location
            v.setX(event.getRawX() - v.getWidth() / 2.0f);
            v.setY(event.getRawY() - v.getHeight() / 2.0f);
        }
            
        return true;
    }
        
});

对于没有标题栏的全屏活动,应该采用这个方法,否则,您可能需要从 Y 坐标中减去标题栏的高度(可能还有通知栏)。

Answer 2

我想做一个文本View 仅横向移动, 上面的代码真的帮助了我, 但是它看起来有点摇摆, 因为文本View 的中间总是指向手指。所以我对代码做了一点修改, 让它看起来更自然:

float diffFingerMove = 0;
private void moveViewOnFinger(View view, MotionEvent event){
    float fingerPos = event.getRawX();

    if(event.getAction() == MotionEvent.ACTION_DOWN){
        diffFingerMove = fingerPos - view.getX();
    }
    view.setX(fingerPos - diffFingerMove);
}

友情链接