Java Code Examples for android.widget.TextView#invalidate()

@Override
public void onAnimationUpdate(ValueAnimator animation) {
    // No need for synchronization as this always run on main thread anyway
    TextView v = textView.get();
    if (v != null) {
        if (isAttachedToHierarchy(v)) {
            shift = (int) animation.getAnimatedValue();
            v.invalidate();
        } else {
            animation.setCurrentPlayTime(0);
            animation.start();
        }
    } else {
        // The textview has been destroyed and teardown() hasn't been called
        teardown();

            Logs.e("JumpingBeans", "!!! Remember to call JumpingBeans.stopJumping() when appropriate !!!");

    }
}
 

/**
 * TextView alignment setter.
 *
 * @param alignment  one of {@link Component#ALIGNMENT_NORMAL},
 *                   {@link Component#ALIGNMENT_CENTER} or
 *                   {@link Component#ALIGNMENT_OPPOSITE}
 * @param centerVertically whether the text should be centered vertically
 */
public static void setAlignment(TextView textview, int alignment, boolean centerVertically) {
  int horizontalGravity;
  switch (alignment) {
    default:
      throw new IllegalArgumentException();

    case Component.ALIGNMENT_NORMAL:
      horizontalGravity = Gravity.LEFT;
      break;

    case Component.ALIGNMENT_CENTER:
      horizontalGravity = Gravity.CENTER_HORIZONTAL;
      break;

    case Component.ALIGNMENT_OPPOSITE:
      horizontalGravity = Gravity.RIGHT;
      break;
  }
  int verticalGravity = centerVertically ? Gravity.CENTER_VERTICAL : Gravity.TOP;
  textview.setGravity(horizontalGravity | verticalGravity);
  textview.invalidate();
}
 

@Override
public void onCreate(Bundle icicle) {
  super.onCreate(icicle);
  setContentView(R.layout.main);
  TextView tv = (TextView) findViewById(R.id.tv);
  Gson gson = new Gson();
  Cart cart = buildCart();
  StringBuilder sb = new StringBuilder();
  sb.append("Gson.toJson() example: \n");
  sb.append("  Cart Object: ").append(cart).append("\n");
  sb.append("  Cart JSON: ").append(gson.toJson(cart)).append("\n");
  sb.append("\n\nGson.fromJson() example: \n");
  String json = "{buyer:'Happy Camper',creditCard:'4111-1111-1111-1111',"
    + "lineItems:[{name:'nails',priceInMicros:100000,quantity:100,currencyCode:'USD'}]}";
  sb.append("Cart JSON: ").append(json).append("\n");
  sb.append("Cart Object: ").append(gson.fromJson(json, Cart.class)).append("\n");
  tv.setText(sb.toString());
  tv.invalidate();
}
 

@Override
public void onAnimationUpdate(ValueAnimator animation) {
    // No need for synchronization as this always run on main thread anyway
    TextView v = textView.get();
    if (v != null) {
        if (isAttachedToHierarchy(v)) {
            shift = (int) animation.getAnimatedValue();
            v.invalidate();
        } else {
            animation.setCurrentPlayTime(0);
            animation.start();
        }
    } else {
        // The textview has been destroyed and teardown() hasn't been called
        teardown();

            Log.e("JumpingBeans", "!!! Remember to call JumpingBeans.stopJumping() when appropriate !!!");

    }
}
 

@Override
public void onAnimationUpdate(ValueAnimator animation) {
    // No need for synchronization as this always run on main thread anyway
    TextView v = textView.get();
    if (v != null) {
        if (isAttachedToHierarchy(v)) {
            shift = (int) animation.getAnimatedValue();
            v.invalidate();
        } else {
            animation.setCurrentPlayTime(0);
            animation.start();
        }
    } else {
        // The textview has been destroyed and teardown() hasn't been called
        teardown();
        if (BuildConfig.DEBUG) {
            Log.e("JumpingBeans", "!!! Remember to call JumpingBeans.stopJumping() when appropriate !!!");
        }
    }
}
 

/**
 * 给Dialog设置提示信息
 *
 * @param message 需要显示的信息
 */
public void setMessage(CharSequence message) {
    if (message != null && message.length() > 0) {
        findViewById(R.id.message).setVisibility(View.VISIBLE);
        TextView txt = (TextView) findViewById(R.id.message);
        txt.setText(message);
        txt.invalidate();
    }
}
 

public void setMessage(CharSequence message) {
	if(message != null && message.length() > 0) {
		findViewById(context.getResources().getIdentifier("message", "id", context.getPackageName())).setVisibility(View.VISIBLE);			
		TextView txt = (TextView)findViewById(context.getResources().getIdentifier("message", "id", context.getPackageName()));  
		txt.setText(message);
		txt.invalidate();
	}
}
 

public void setMessage(CharSequence message) {
	if(message != null && message.length() > 0) {
		findViewById(context.getResources().getIdentifier("message", "id", context.getPackageName())).setVisibility(View.VISIBLE);			
		TextView txt = (TextView)findViewById(context.getResources().getIdentifier("message", "id", context.getPackageName()));  
		txt.setText(message);
		txt.invalidate();
	}
}
 

@Override
public void invalidateDrawable(@NonNull Drawable who) {
    TextView textView = textViewWeakReference.get();
    if (textView != null) {
        textView.invalidate();
    } else {
        recycle();
    }
}
 

public void updateChildState(DownloadEntity entity) {
  Integer i = mPosition.get(entity.getFilePath());
  if (i == null) return;
  int position = i;
  if (position != -1) {
    TextView child = ((TextView) getChildAt(position));
    if (entity.isComplete()) {
      child.setText(entity.getFileName() + " | " + getResources().getText(R.string.complete));
    } else {
      int p = getPercent(entity);
      child.setText(entity.getFileName() + ": " + p + "%" + "   | " + entity.getConvertSpeed());
    }
    child.invalidate();
  }
}
 

private void refreshRMSLabel(double dtRMSFromFT) {
    textRMS.setLength(0);
    textRMS.append("RMS:dB \n");
    SBNumFormat.fillInNumFixedWidth(textRMS, 20*Math.log10(dtRMSFromFT), 3, 1);
    textRMS.getChars(0, Math.min(textRMS.length(), textRMSChar.length), textRMSChar, 0);

    TextView tv = (TextView) activity.findViewById(R.id.textview_RMS);
    tv.setText(textRMSChar, 0, textRMSChar.length);
    tv.invalidate();
}
 

@Override public void onResourceReady(GlideDrawable resource, GlideAnimation<? super GlideDrawable> glideAnimation) {
    if (container != null && container.get() != null) {
        TextView textView = container.get();
        float width;
        float height;
        if (resource.getIntrinsicWidth() >= this.width) {
            float downScale = (float) resource.getIntrinsicWidth() / this.width;
            width = (float) (resource.getIntrinsicWidth() / downScale / 1.3);
            height = (float) (resource.getIntrinsicHeight() / downScale / 1.3);
        } else {
            float multiplier = (float) this.width / resource.getIntrinsicWidth();
            width = (float) resource.getIntrinsicWidth() * multiplier;
            height = (float) resource.getIntrinsicHeight() * multiplier;
        }
        Rect rect = new Rect(0, 0, Math.round(width), Math.round(height));
        resource.setBounds(rect);
        urlDrawable.setBounds(rect);
        urlDrawable.setDrawable(resource);
        if (resource.isAnimated() && !PrefGetter.isGistDisabled()) {
            urlDrawable.setCallback((Drawable.Callback) textView.getTag(R.id.drawable_callback));
            resource.setLoopCount(GlideDrawable.LOOP_FOREVER);
            resource.start();
        }
        textView.setText(textView.getText());
        textView.invalidate();
    }
}
 

public static void setGradient(TextView textView, final int[] colorBoxes, final float[] position, final GradientAngle gradientAngle) {
    AngleCoordinate ac = AngleCoordinate.getAngleCoordinate(gradientAngle, textView.getWidth(), textView.getHeight());
    LinearGradient linearGradient = new LinearGradient(ac.x1, ac.y1, ac.x2, ac.y2,
            colorBoxes,
            position,
            Shader.TileMode.REPEAT);
    textView.invalidate();
    textView.getPaint().setShader(linearGradient);
}
 

private void refreshPeakLabel(double maxAmpFreq, double maxAmpDB) {
    textPeak.setLength(0);
    textPeak.append(activity.getString(R.string.text_peak));
    SBNumFormat.fillInNumFixedWidthPositive(textPeak, maxAmpFreq, 5, 1);
    textPeak.append("Hz(");
    AnalyzerUtil.freq2Cent(textPeak, maxAmpFreq, " ");
    textPeak.append(") ");
    SBNumFormat.fillInNumFixedWidth(textPeak, maxAmpDB, 3, 1);
    textPeak.append("dB");
    textPeak.getChars(0, Math.min(textPeak.length(), textPeakChar.length), textPeakChar, 0);

    TextView tv = (TextView) activity.findViewById(R.id.textview_peak);
    tv.setText(textPeakChar, 0, textPeakChar.length);
    tv.invalidate();
}
 

/**
 * 给Dialog设置提示信息
 *
 * @param message
 */
public void setMessage(CharSequence message) {
    if (message != null && message.length() > 0) {
        findViewById(R.id.message).setVisibility(View.VISIBLE);
        TextView txt = (TextView) findViewById(R.id.message);
        txt.setText(message);
        txt.invalidate();
    }
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState, R.layout.sniff_activity);

	setBarTitle(Html.fromHtml("<b>" + getString(R.string.sniffer) + "</b> - <small>"
			+ AppContext.getTarget().getIp() + "</small>"));

	headerView = findViewById(R.id.header_view);
	fileSizeText = (TextView) findViewById(R.id.header_text);

	tcpdumpCheckBox = (CheckBox) findViewById(R.id.tcpdump_check_box);

	handler = new Handler();
	updateRunnable = new Runnable() {

		@Override
		public void run() {
			File file = new File(AppContext.getStoragePath() + "/"
					+ SnifferService.sniffer_file_name);
			if (file.exists()) {
				fileSizeText.setText(getString(
						R.string.already_sniffer_data,
						file.length() / (1000 * 1000f)));
				fileSizeText.invalidate();
			}
			handler.postDelayed(this, 1000);
		}
	};

	if (AppContext.isTcpdumpRunning) {
		tcpdumpCheckBox.setChecked(true);
		headerView.setVisibility(View.VISIBLE);
		handler.post(updateRunnable);
	} else {
		tcpdumpCheckBox.setChecked(false);
	}

	tcpdumpCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {

		@Override
		public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
			Intent intent = new Intent(SniffActivity.this, SnifferService.class);
			if (isChecked) {
				headerView.setVisibility(View.VISIBLE);
				startService(intent);
				handler.post(updateRunnable);
			} else {
				if (handler != null && updateRunnable != null) {
					handler.removeCallbacks(updateRunnable);
				}
				Toast.makeText(SniffActivity.this,
						getString(R.string.saved_in,
								AppContext.getStoragePath()
										+ "/"
										+ SnifferService.sniffer_file_name),
						Toast.LENGTH_LONG).show();
				stopService(intent);
				headerView.setVisibility(View.GONE);
				fileSizeText.setText("");
			}
		}
	});
}
 

@Override
public void update() {
    TextView tv = target.get();
    if (tv.getTag(R.string.atom_ui_title_add_emotion) != null)
        tv.invalidate();
}
 

private void updateAnimationFor(@NonNull ValueAnimator animation, @NonNull TextView v) {
    if (isAttachedToHierarchy(v)) {
        shift = (int) animation.getAnimatedValue();
        v.invalidate();
    }
}
 

/**
 * Sets the text color for a {@link TextView}.
 *
 * @param textview   text view instance
 * @param argb  text RGB color with alpha
 */
public static void setTextColor(TextView textview, int argb) {
  textview.setTextColor(argb);
  textview.invalidate();
}
 

/**
 * {@link TextView} background color setter.  Generally, the caller will
 * not pass {@link Component#COLOR_DEFAULT}, instead substituting in the
 * appropriate color.
 *
 * @param textview   text view instance
 * @param argb  background RGB color with alpha
 */
public static void setBackgroundColor(TextView textview, int argb) {
  textview.setBackgroundColor(argb);
  textview.invalidate();
}