将 android:layout_marginLeft="10dp" 替换成 android:layout_marginStart="10dp" 能更好的支持从右到左的布局
android:gravity="center|left"
代码警告解释 替换为 android:gravity="center|start"
android: paddingLeft 提示 Redundant attribute paddingLeft; already defining paddingStart with targetSdkVersion 23
优化方法及警告解释 android:paddingStart="10dp" android:paddingEnd="0dp"
TextView.setText
int money=0;
money_txt.setText(money+"元" );提示警告问题
Do not concatenate text displayed with setText. Use resource string with placeholders.
Handler 提示 应该改成静态类 否则可能造成内存溢出
This Handler class should be static or leaks might occur (anonymous android.os.Handler)
解决方法
MyHandlerhandler =new MyHandler(this);
static class MyHandlerextends Handler {
WeakReferencemActivity;
MyHandler(Login activity) {
mActivity =new WeakReference<>(activity);
}
@Override
public void handleMessage(Message msg) {
Login loginactivity =mActivity.get();
String text = (String) msg.obj;
switch (msg.what) {
case 0:
loginactivity.submit_login.setClickable(true);
break;
}
}
}
