Android view转bitmap，byte[]转Bitmap

1、自定义marker布局文件即自定义view文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical">

    <TextView
        android:id="@+id/tete"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@mipmap/dw64"/>

</LinearLayout>

2、引入自定义view

LayoutInflater mInflater = LayoutInflater.from(this);
View view = mInflater.inflate(R.layout.zdyview, null);
TextView textView = view.findViewById(R.id.tete);
textView.setText("大象");

Bitmap bitmap =convertViewToBitmap(view);

view转bitmap方法

这个bitmap即可在Marker中使用

//view 转bitmap

public static Bitmap convertViewToBitmap(View view) {

    view.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));

    view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());

    view.buildDrawingCache();

    Bitmap bitmap = view.getDrawingCache();

    return bitmap;

}

//------------------------------------------------------------------------------------------ private void ShowFingerBitmap(byte[] image, int width, int height) { if (width==0) return; if (height==0) return; int[] RGBbits = new int[width * height]; viewFinger.invalidate(); for (int i = 0; i < width * height; i++ ) { int v; if (image != null) v = image[i] & 0xff; else v= 0; if(v<200) RGBbits[i] = Color.argb(255,255, v, v); else RGBbits[i] = Color.argb(0,v, v, v); } Bitmap bmp = Bitmap.createBitmap(RGBbits, width, height,Config.RGB_565); Log.e("获取成功","指纹图片成功====  "+bmp); viewFinger.setImageBitmap(bmp); }