Java Code Examples for android.widget.TextView.draw()

The following are Jave code examples for showing how to use draw() of the android.widget.TextView class. You can vote up the examples you like. Your votes will be used in our system to get more good examples.
Example 1
Project: GitHub   File: FalsifyHeader.java   Source Code and License Vote up 6 votes 
@[email protected]("DrawAllocation")
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表下拉Header的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
Example 2
Project: GitHub   File: FalsifyFooter.java   Source Code and License Vote up 6 votes 
@[email protected]("DrawAllocation")
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表上拉Footer的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
Example 3
Project: Rxjava2.0Demo   File: FalsifyHeader.java   Source Code and License Vote up 6 votes 
@Override
@SuppressLint("DrawAllocation")
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表下拉Header的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
Example 4
Project: Rxjava2.0Demo   File: FalsifyFooter.java   Source Code and License Vote up 6 votes 
@Override
@SuppressLint("DrawAllocation")
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表上拉Footer的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
Example 5
Project: SmartRefresh   File: FalsifyHeader.java   Source Code and License Vote up 6 votes 
@[email protected]("DrawAllocation")
protected final void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表下拉Header的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
Example 6
Project: SmartRefreshLayout   File: FalsifyHeader.java   Source Code and License Vote up 6 votes 
@Override
@SuppressLint({"DrawAllocation", "SetTextI18n"})
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表下拉Header的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
Example 7
Project: SmartRefreshLayout   File: FalsifyFooter.java   Source Code and License Vote up 6 votes 
@Override
@SuppressLint({"DrawAllocation", "SetTextI18n"})
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表上拉Footer的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
Example 8
Project: google-maps-clustering   File: DefaultIconGenerator.java   Source Code and License Vote up 6 votes 
@NonNull
private BitmapDescriptor createClusterIcon(int clusterBucket) {
    @SuppressLint("InflateParams")
    TextView clusterIconView = (TextView) LayoutInflater.from(mContext)
            .inflate(R.layout.map_cluster_icon, null);
    clusterIconView.setBackground(createClusterBackground());
    clusterIconView.setTextColor(mIconStyle.getClusterTextColor());
    clusterIconView.setTextSize(TypedValue.COMPLEX_UNIT_PX,
            mIconStyle.getClusterTextSize());

    clusterIconView.setText(getClusterIconText(clusterBucket));

    clusterIconView.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
    clusterIconView.layout(0, 0, clusterIconView.getMeasuredWidth(),
            clusterIconView.getMeasuredHeight());

    Bitmap iconBitmap = Bitmap.createBitmap(clusterIconView.getMeasuredWidth(),
            clusterIconView.getMeasuredHeight(), Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(iconBitmap);
    clusterIconView.draw(canvas);

    return BitmapDescriptorFactory.fromBitmap(iconBitmap);
}
Example 9
Project: android-instant-apps   File: TextResize.java   Source Code and License Vote up 5 votes 
private static Bitmap captureTextBitmap(TextView textView) {
    Drawable background = textView.getBackground();
    textView.setBackground(null);
    int width = textView.getWidth() - textView.getPaddingLeft() - textView.getPaddingRight();
    int height = textView.getHeight() - textView.getPaddingTop() - textView.getPaddingBottom();
    if (width == 0 || height == 0) {
        return null;
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    canvas.translate(-textView.getPaddingLeft(), -textView.getPaddingTop());
    textView.draw(canvas);
    textView.setBackground(background);
    return bitmap;
}
Example 10
Project: FacebookReaction   File: Emotion.java   Source Code and License Vote up 5 votes 
private void snapShotLabelView(String title) {
  LayoutInflater inflater = LayoutInflater.from(context);
  TextView labelView = (TextView) inflater.inflate(R.layout.view_label, null, false);
  labelView.setText(title);

  int width = (int) context.getResources().getDimension(R.dimen.label_width);
  int height = (int) context.getResources().getDimension(R.dimen.label_height);

  labelRatio = width / height  ;
  imageTitle = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_4444);

  Canvas canvas = new Canvas(imageTitle);
  labelView.layout(0, 0, width, height);
  labelView.draw(canvas);
}
Example 11
Project: LoginConcept   File: TextSizeTransition.java   Source Code and License Vote up 5 votes 
private static Bitmap captureTextBitmap(TextView textView) {
    Drawable background = textView.getBackground();
    textView.setBackground(null);
    int width = textView.getWidth() - textView.getPaddingLeft() - textView.getPaddingRight();
    int height = textView.getHeight() - textView.getPaddingTop() - textView.getPaddingBottom();
    if (width == 0 || height == 0) {
        return null;
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    canvas.translate(-textView.getPaddingLeft(), -textView.getPaddingTop());
    textView.draw(canvas);
    textView.setBackground(background);
    return bitmap;
}
Example 12
Project: DailyStudy   File: WxItemDecoration.java   Source Code and License Vote up 5 votes 
private void drawInflat(Canvas c, RecyclerView parent, String tag) {
    TextView toDrawView = (TextView) LayoutInflater.from(parent.getContext()).inflate(R.layout.title_item, parent, false);
    toDrawView.setText(tag);
    int toDrawWidthSpec;//用于测量的widthMeasureSpec
    int toDrawHeightSpec;//用于测量的heightMeasureSpec
    //拿到复杂布局的LayoutParams，如果为空，就new一个。
    // 后面需要根据这个lp 构建toDrawWidthSpec，toDrawHeightSpec
    ViewGroup.LayoutParams lp = toDrawView.getLayoutParams();
    if (lp == null) {
        lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);//这里是根据复杂布局layout的width height，new一个Lp
        toDrawView.setLayoutParams(lp);
    }
    if (lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
        //如果是MATCH_PARENT，则用父控件能分配的最大宽度和EXACTLY构建MeasureSpec。
        toDrawWidthSpec = View.MeasureSpec.makeMeasureSpec(parent.getWidth() - parent.getPaddingLeft() - parent.getPaddingRight(), View.MeasureSpec.EXACTLY);
    } else if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) {
        //如果是WRAP_CONTENT，则用父控件能分配的最大宽度和AT_MOST构建MeasureSpec。
        toDrawWidthSpec = View.MeasureSpec.makeMeasureSpec(parent.getWidth() - parent.getPaddingLeft() - parent.getPaddingRight(), View.MeasureSpec.AT_MOST);
    } else {
        //否则则是具体的宽度数值，则用这个宽度和EXACTLY构建MeasureSpec。
        toDrawWidthSpec = View.MeasureSpec.makeMeasureSpec(lp.width, View.MeasureSpec.EXACTLY);
    }
    //高度同理
    if (lp.height == ViewGroup.LayoutParams.MATCH_PARENT) {
        toDrawHeightSpec = View.MeasureSpec.makeMeasureSpec(parent.getHeight() - parent.getPaddingTop() - parent.getPaddingBottom(), View.MeasureSpec.EXACTLY);
    } else if (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) {
        toDrawHeightSpec = View.MeasureSpec.makeMeasureSpec(parent.getHeight() - parent.getPaddingTop() - parent.getPaddingBottom(), View.MeasureSpec.AT_MOST);
    } else {
        toDrawHeightSpec = View.MeasureSpec.makeMeasureSpec(lp.width, View.MeasureSpec.EXACTLY);
    }
    //依次调用 measure,layout,draw方法，将复杂头部显示在屏幕上。
    toDrawView.measure(toDrawWidthSpec, toDrawHeightSpec);
    toDrawView.layout(parent.getPaddingLeft(), parent.getPaddingTop(),
            parent.getPaddingLeft() + toDrawView.getMeasuredWidth(), parent.getPaddingTop() + toDrawView.getMeasuredHeight());
    toDrawView.draw(c);
}