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@ -2,11 +2,9 @@ package com.frank.ffmpeg.util; |
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import android.content.Context; |
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import android.graphics.Bitmap; |
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import android.graphics.Canvas; |
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import android.graphics.Color; |
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import android.view.Gravity; |
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import android.view.View; |
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import android.widget.LinearLayout; |
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import android.widget.TextView; |
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import android.graphics.Paint; |
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import java.io.File; |
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import java.io.FileOutputStream; |
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@ -25,30 +23,25 @@ public class BitmapUtil { |
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/** |
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* convert text to bitmap |
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* |
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* @param text text |
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* @param context context |
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* @param text text |
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* @return bitmap of teh text |
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*/ |
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private static Bitmap textToBitmap(String text, Context context) { |
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float scale = context.getResources().getDisplayMetrics().scaledDensity; |
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TextView tv = new TextView(context); |
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LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams( |
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LinearLayout.LayoutParams.WRAP_CONTENT, |
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LinearLayout.LayoutParams.WRAP_CONTENT); |
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tv.setLayoutParams(layoutParams); |
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tv.setText(text); |
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tv.setTextSize(scale * TEXT_SIZE); |
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tv.setGravity(Gravity.CENTER_HORIZONTAL); |
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tv.setDrawingCacheEnabled(true); |
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tv.setTextColor(TEXT_COLOR); |
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tv.setBackgroundColor(Color.WHITE); |
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tv.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), |
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View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED)); |
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tv.layout(0, 0, tv.getMeasuredWidth(), tv.getMeasuredHeight()); |
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tv.buildDrawingCache(); |
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Bitmap bitmap = tv.getDrawingCache(); |
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int rate = bitmap.getHeight() / 20; |
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return Bitmap.createScaledBitmap(bitmap, bitmap.getWidth() / rate, 20, false); |
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private static Bitmap textToBitmap(String text) { |
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Paint paint = new Paint(); |
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paint.setTextSize(TEXT_SIZE); |
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paint.setTextAlign(Paint.Align.LEFT); |
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paint.setColor(TEXT_COLOR); |
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paint.setDither(true); |
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paint.setAntiAlias(true); |
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Paint.FontMetricsInt fm = paint.getFontMetricsInt(); |
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int width = (int)paint.measureText(text); |
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int height = fm.descent - fm.ascent; |
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Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); |
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Canvas canvas = new Canvas(bitmap); |
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canvas.drawText(text, 0, fm.leading - fm.ascent, paint); |
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canvas.save(); |
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return bitmap; |
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} |
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/** |
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@ -56,15 +49,14 @@ public class BitmapUtil { |
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* |
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* @param filePath filePath |
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* @param text text |
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* @param context context |
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* @return result of generating picture |
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*/ |
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public static boolean textToPicture(String filePath, String text, Context context) { |
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Bitmap bitmap = textToBitmap(text, context); |
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public static boolean textToPicture(String filePath, String text) { |
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Bitmap bitmap = textToBitmap(text); |
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FileOutputStream outputStream = null; |
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try { |
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outputStream = new FileOutputStream(filePath); |
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bitmap.compress(Bitmap.CompressFormat.JPEG, 90, outputStream); |
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bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream); |
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outputStream.flush(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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