用TextView显示带图片的效果

ET焖猪仔

转载他人的：http://www.devdiv.net/bbs/thread-23974-1-1.html
为了实现在TextView中显示图片，有时对图片的宽度与高度有限制的话，可以对实现进行放大与缩小操作！



main.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><TextView      android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="@string/hello"    /><TextView android:text="TextView01" android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView><TextView android:text="TextView02" android:id="@+id/TextView02" android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView></LinearLayout>


GridView.java
package a.gridview;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.Canvas;import android.graphics.Matrix;import android.graphics.PixelFormat;import android.graphics.Rect;import android.graphics.drawable.BitmapDrawable;import android.graphics.drawable.Drawable;import android.os.Bundle;import android.widget.TextView;public class GridView extends Activity {                private TextView text;        private TextView text1;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        text = (TextView) findViewById(R.id.TextView01);        Drawable draw = this.getResources().getDrawable(R.drawable.srvmng);           text.setCompoundDrawablesWithIntrinsicBounds(null, draw, null,null);        text.setText("应用");                text1 = (TextView) findViewById(R.id.TextView02);        Drawable draw1 = this.getResources().getDrawable(R.drawable.srvmng);          int w = draw1.getIntrinsicWidth();        int h = draw1.getIntrinsicHeight();        Rect rect = draw1.getBounds();        text1.setCompoundDrawablesWithIntrinsicBounds(null, zoomDrawable(draw1,32,32), null,null);        text1.setText("设置");    }        static Drawable zoomDrawable(Drawable drawable, int w, int h)    {              int width = drawable.getIntrinsicWidth();              int height= drawable.getIntrinsicHeight();              Bitmap oldbmp = drawableToBitmap(drawable); // drawable转换成bitmap              Matrix matrix = new Matrix();   // 创建操作图片用的Matrix对象              float scaleWidth = ((float)w / width);   // 计算缩放比例              float scaleHeight = ((float)h / height);              matrix.postScale(scaleWidth, scaleHeight);         // 设置缩放比例              Bitmap newbmp = Bitmap.createBitmap(oldbmp, 0, 0, width, height, matrix, true);       // 建立新的bitmap，其内容是对原bitmap的缩放后的图              return new BitmapDrawable(newbmp);       // 把bitmap转换成drawable并返回    }    static Bitmap drawableToBitmap(Drawable drawable) // drawable 转换成bitmap    {              int width = drawable.getIntrinsicWidth();   // 取drawable的长宽              int height = drawable.getIntrinsicHeight();              Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888:Bitmap.Config.RGB_565;         // 取drawable的颜色格式              Bitmap bitmap = Bitmap.createBitmap(width, height, config);     // 建立对应bitmap              Canvas canvas = new Canvas(bitmap);         // 建立对应bitmap的画布              drawable.setBounds(0, 0, width, height);              drawable.draw(canvas);      // 把drawable内容画到画布中              return bitmap;    }}

显示效果：