Dialog第三方登录等待

1. styles.xml 中加入

<style name="loadingDialogStyle" parent="android:Theme.Dialog">
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowFrame">@null</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <!-- 对话框是否有遮盖 -->
        <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
        <item name="android:backgroundDimEnabled">true</item>
    </style>

2. dialog_loading.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/transparent"
    android:gravity="center"
    android:orientation="vertical" >

    <LinearLayout
        android:id="@+id/LinearLayout"
        android:layout_width="160dp"
        android:layout_height="160dp"
        android:background="@drawable/dialog_bg"
        android:gravity="center"
        android:orientation="vertical" >

        <ProgressBar
            android:id="@+id/progressBar1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:background="@android:color/transparent" />

        <TextView
            android:id="@+id/tv"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:paddingTop="10dp"
            android:textColor="@android:color/white" />
    </LinearLayout>

</LinearLayout>

3. LoadingDialog.java

public class LoadingDialog extends Dialog {
    private TextView tv;

    public LoadingDialog(Context context) {
        super(context, R.style.loadingDialogStyle);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dialog_loading);
        tv = (TextView) this.findViewById(R.id.tv);
        tv.setText("正在登录...");
        LinearLayout linearLayout = (LinearLayout) this
                .findViewById(R.id.LinearLayout);
        linearLayout.getBackground().setAlpha(210);
    }
}

4. 加入你的主代码中

public class MainActivity extends Activity {
    LoadingDialog dialog;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        dialog = new LoadingDialog(this);
        dialog.setCanceledOnTouchOutside(false);
        dialog.show();
    }
}

5. 总结

相当于自定义一个界面，中间一个dialog,背景setAlpha(210)，覆盖你的界面。登录成功后，消失dialog.dismiss().