Androidでよく使われるコードクリップ
2973 ワード
Androidリソースファイルからファイルストリーム表示を読み込む
AndroidでのJson形式データの解析
private void doRaw(){
InputStream is = this.getResources().openRawResource(R.raw.ziliao);
try{
doRead(is);
}catch(IOException e){
e.printStackTrace();
}
}
private void doRead(InputStream is) throws IOException{
DataInputStream dis = new DataInputStream(is);
byte[]buffer = new byte[is.available()];
dis.readFully(buffer);
textView.setText(new String(buffer));
dis.close();
is.close();
}
// this.getResources().openRawResource
AndroidでのJson形式データの解析
package com.practice.json;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
public class JsonDemo extends Activity {
/*
* JSON ,str JSON , LogCat
*/
String TAG = "Json message";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
detectJSON();
}
private void detectJSON() {
String str = "{"+
"\" \" : \"2011-06-06\","+
//Like JSONObject
"\"Like\" : {"+
"\"Name\" : \" \","+
"\"Height\" : \"2.11cm\","+
"\"Age\" : 35"+
"},"+
//LikeList JSONObject
"\"LikeList\":" +
"{\"List\": " +
"["+
// JSONObject
"{"+
"\"Name\" : \"Rose\","+
"\"Height\" : \"190cm\","+
"\"Age\" : 23"+
"},"+
// JSONObject
"{"+
"\"Name\" : \" \","+
"\"Height\" : \"198cm\","+
"\"Age\" : 33"+
"}"+
"]"+
"}"+
"}";
try {
JSONObject dataJson = new JSONObject(str);
Log.d(TAG, dataJson.getString(" "));
JSONObject nbaJson = dataJson.getJSONObject("Like");
Log.d(TAG, nbaJson.getString("Name"));
Log.d(TAG, nbaJson.getString("Height"));
Log.d(TAG, nbaJson.get("Age").toString());
JSONObject listJson = dataJson.getJSONObject("LikeList");
JSONArray arrayJson = listJson.getJSONArray("List");
for(int i=0;i<arrayJson.length();i++) {
JSONObject tempJson = arrayJson.optJSONObject(i);
Log.d(TAG, tempJson.getString("Name"));
Log.d(TAG, tempJson.getString("Height"));
Log.d(TAG, tempJson.getString("Age").toString());
}
} catch (JSONException e) {
System.out.println("Something wrong...");
e.printStackTrace();
}
}
}