有的时候，前后端同时开发，但是后端往往没那么快，这个时候，我们可以直接写本地的json文件，然后解析，获取数据，比直接写假数据要好得多
json文件位置：
F:\project\assets\ReadingJsonFromFile-master\app\src\main\assets\update.json
代码
package com.dcastalia.readingjsonfromfile;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.TextView;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
TextView textView ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView = (TextView) findViewById(R.id.txtExample);
loadJsonFromAssests();
}
public void loadJsonFromAssests (){
String json = null ;
try{
InputStream inputStream = getAssets().open("update.json");
int size = inputStream.available();
byte[] buffer = new byte[size];
inputStream.read(buffer);
inputStream.close();
json = new String(buffer,"UTF-8");
}
catch (IOException ex ){
ex.printStackTrace();
}
Log.e("TAG","loadJsonFromAssests:"+json.toString());
}
}
日志
2021-04-13 09:51:48.407 19688-19688/com.dcastalia.readingjsonfromfile W/ingjsonfromfil:
2021-04-13 09:51:48.457 19688-19688/com.dcastalia.readingjsonfromfile E/TAG: loadJsonFromAssests:{
"size":"51.92",
"link":"http://apk?v=3.2.1",
"version":"3.0.1",
"desc":"1、新增预览；2、增加功能；3、细节体验优化。",
"md5":"f9b8330843c98365eba0"
}
2021-04-13 09:51:48.545 19688-19714/com.dcastalia.readingjsonfromfile I/Adreno: QUALCOMM build
end
