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情景1:
向数据库中插入10000条数据的结果:

testData();//插入10000条数据 list = blackdao.findAll(); blackAdapter = new BlackAdapter(); lv_black.setAdapter(blackAdapter);
情景2:
//使用线程插入数据,
new Thread() {
public void run() {
testData();// 插入10000条数据
};
}.start();
list = blackdao.findAll();
blackAdapter = new BlackAdapter();
lv_black.setAdapter(blackAdapter);

注意:但是结果要重新退出,然后加载才会有数据,也就是说list中的数据没有更新
情景3:使用线程,用其他线程中的方法更新UI主线程
new Thread() {
public void run() {
list = blackdao.findAll();
runOnUiThread(new Runnable() {
public void run() {
blackAdapter = new BlackAdapter();
lv_black.setAdapter(blackAdapter);
}
});
};
}.start();
情景4:使用线程,用hanlder更新UI主线程
final Handler handler = new Handler() {
public void handleMessage(Message msg) { // TODO
String s = (String) msg.obj;
if ("ok".equals(s)) {
Toast.makeText(CallSmsSafeActiviy.this, "ok", 0).show();
blackAdapter = new BlackAdapter();
lv_black.setAdapter(blackAdapter);
}
}
};
new Thread() {
public void run() {
list = blackdao.findAll();
Message msg = new Message();
msg.obj = "ok";
handler.sendMessage(msg);
};
}.start();
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原文地址:http://www.cnblogs.com/childhooding/p/4516062.html