访问内容提供者

package com.xh.tx.test;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}@Overridepublic boolean onOptionsItemSelected(MenuItem item) {// Handle action bar item clicks here. The action bar will// automatically handle clicks on the Home/Up button, so long// as you specify a parent activity in AndroidManifest.xml.int id = item.getItemId();if (id == R.id.action_settings) {return true;}return super.onOptionsItemSelected(item);}}

package com.xh.tx.test;import android.content.ContentResolver;import android.content.ContentValues;import android.database.Cursor;import android.net.Uri;import android.test.AndroidTestCase;import android.util.Log;public class TestPersonContentProvider extends AndroidTestCase {private static final String TAG = "TestPersonContentProvider";public void testInsert(){//访问地址：content://com.xh.tx.contentprivoder.PersonContentPrivoder/person/insertContentResolver resolver = getContext().getContentResolver();ContentValues values = new ContentValues();values.put("name","zs");values.put("age","20");resolver.insert(Uri.parse("content://com.xh.tx.contentprivoder.PersonContentPrivoder/person/insert"),values);}public void testUpdate(){ContentResolver resolver = getContext().getContentResolver(); //内容提供者的访问类ContentValues values = new ContentValues();values.put("name", "1505");String where = "id = ?";String[] selectionArgs = new String[]{"1"};int id = resolver.update(Uri.parse("content://com.xh.tx.contentprivoder.PersonContentPrivoder/person/update"), values , where, selectionArgs);Log.d(TAG, "UPDATE .... = " + id);}public void testQuery(){ContentResolver resolver = getContext().getContentResolver(); //内容提供者的访问类//content://com.xh.tx.contentprivoder.PersonContentPrivoder/person/queryString[] projection = new String[]{"id","name","age"};Cursor cursor = resolver.query(Uri.parse("content://com.xh.tx.contentprivoder.PersonContentPrivoder/person/query"), projection, null, null, null);if(null != cursor && cursor.getCount() > 0){while(cursor.moveToNext()){Integer id = cursor.getInt(0);String name = cursor.getString(1);Integer age = cursor.getInt(2);Log.d(TAG, "id=" + id + " name= " + name + " age= " + age);}cursor.close(); // 一定记住不要忘了关闭游标}}}