关于#Android#的问题，如何解决？使用Android studio 将从SQLite数据库获取到的图片路径转换为Bitmap显示在ImageView中报错：bad base-64。

Question

使用Android studio 将从SQLite数据库获取到的图片路径转换为Bitmap显示在ImageView中报错：java.lang.IllegalArgumentException: bad base-64。求大佬指导！
报错如下：

W/System.err: java.lang.IllegalArgumentException: bad base-64
        at android.util.Base64.decode(Base64.java:163)
        at android.util.Base64.decode(Base64.java:138)
        at android.util.Base64.decode(Base64.java:120)
        at com.demo2.android.activity.InfoSheet.initInfo(InfoSheet.kt:69)
        at com.demo2.android.activity.InfoSheet.onCreate(InfoSheet.kt:42)
        at android.app.Activity.performCreate(Activity.java:8397)
        at android.app.Activity.performCreate(Activity.java:8370)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1403)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3842)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4011)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:111)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
W/System.err:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2466)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loopOnce(Looper.java:240)
        at android.os.Looper.loop(Looper.java:351)
        at android.app.ActivityThread.main(ActivityThread.java:8364)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:584)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1013)

相关代码如下：

val pic = cursor.getString(cursor.getColumnIndexOrThrow("plantPicture"))
                    val name = cursor.getString(cursor.getColumnIndexOrThrow("plantName"))
                    val person = cursor.getString(cursor.getColumnIndexOrThrow("takePhotoPerson"))
                    val time = cursor.getString(cursor.getColumnIndexOrThrow("takePhotoDate")) + " " + cursor.getString(cursor.getColumnIndexOrThrow("takePhotoTime"))
                    val add = cursor.getString(cursor.getColumnIndexOrThrow("takePhotoJW"))
                    //将照片显示出来
                    var bitmap: Bitmap? = null
                    try {
                        val bitmapArray: ByteArray = Base64.decode(pic, Base64.DEFAULT)
                        val oriBitmap = BitmapFactory.decodeByteArray(bitmapArray, 0, bitmapArray.size)
                        bitmap = ResizeBitmap.resizeImage(oriBitmap, 100, 100)
                    } catch (e: Exception) {
                        e.printStackTrace()
                    }

# 代码中pic为：/storage/emulated/0/Download/Browser/8057389_8057389_1308493783296_mthumb.jpg

Answer 1

你应该把pic这个路径下的图片先读出来在base64，而不是对pic这个路径的字符串做base64