android 读取本地图片并显示

MainActivity.java

package com.example.ict.client;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.os.StrictMode;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.ImageView;import android.widget.TextView;import java.io.ByteArrayOutputStream;import java.io.DataInputStream;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.net.Socket;public class MainActivity extends AppCompatActivity {    private static final String HOST = "192.168.43.1";    private static final int PORT = 5555;    TextView textView = null;    Socket socket = null;    private Bitmap bmp = null;    private ImageView imageView = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        if (android.os.Build.VERSION.SDK_INT > 9) {            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();            StrictMode.setThreadPolicy(policy);}        imageView = (ImageView)findViewById(R.id.imageView);      //  imageView.setImageResource(R.mipmap.ict);        bmp = getLoacalBitmap("/mnt/sdcard/arrow.png");        imageView.setImageBitmap(bmp);        try{            socket = new Socket(HOST,PORT);            DataInputStream dataInput = new DataInputStream(socket.getInputStream());            int size =dataInput.readInt();            byte[] data = new byte[size];            int len = 0;            while(len

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