Android layout android程序未在eclipse上运行
我是一个android新手，我下载了一个源代码，但它没有运行。有人能帮我吗。没有我的交叉签名，但我的程序没有运行，我无法知道logcat的错误输出 这是我的主要活动代码Android layout android程序未在eclipse上运行,android-layout,Android Layout,我是一个android新手，我下载了一个源代码，但它没有运行。有人能帮我吗。没有我的交叉签名，但我的程序没有运行，我无法知道logcat的错误输出 这是我的主要活动代码 public class MainActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) {
public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView JsonSrc = (TextView)findViewById(R.id.json_src);
TextView JsonResult = (TextView)findViewById(R.id.json_result);
/*
* JSON:
* {"id":12,"name":12,"status":"ok","volumes":[{"id":17592,"name":"root","status":"ok"}]}
*/
final String customJSON = "{\"id\":12,\"name\":12,\"status\":\"ok\",\"volumes\":[{\"id\":17592,\"name\":\"root\",\"status\":\"ok\"}]}";
JsonSrc.setText(customJSON);
try {
JSONObject jsonObject = new JSONObject(customJSON);
String myId = jsonObject.getString("id");
String myName = jsonObject.getString("name");
String myStatus = jsonObject.getString("status");
String stringJsonResult = "id: " + myId + "\n"
+ "name: " + myName + "\n"
+ "status: " + myStatus;
JSONArray jsonArray = jsonObject.getJSONArray("volumes");
JSONObject arrayElement_0 = jsonArray.getJSONObject(0);
String ele0_id = arrayElement_0.getString("id");
String ele0_name = arrayElement_0.getString("name");
String ele0_status = arrayElement_0.getString("status");
stringJsonResult += "\n\nArray Element 0 - \n"
+ "id: " + ele0_id + "\n"
+ "name: " + ele0_name + "\n"
+ "status: " + ele0_status;
JsonResult.setText("\n" + stringJsonResult);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(MainActivity.this, e.toString(), Toast.LENGTH_LONG).show();
}
}
}
08-24 10:01:56.662: E/AndroidRuntime(798): java.lang.RuntimeException: Unable to start activityComponentInfo{com.mokshya.androidparse/com.mokshya.androidparse.MainActivity}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.view.ViewGroup
请帮助我。
java.lang.ClassCastException:android.widget.TextView无法转换为android.view.ViewGroup此错误意味着
TextViewViewGroup活动\u main.xml