Android 学习之简单的底部弹出dialog

简单的实现了底部弹出dialog的实现效果 直接上代码

activity中代码

package com.example.dialogdemo;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity implements OnClickListener {
    private Button button;
    private MyDialog dialog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void showDialog(View view) {
        dialog = new MyDialog(this);
        dialog.setContentView(R.layout.dialog);
        WindowInfo windowInfo = new WindowInfo(this);
        dialog.getWindow().setLayout(windowInfo.getWindowWidth(),
                windowInfo.getWindowHeight() / 2);
        dialog.show();
        button = (Button) dialog.findViewById(R.id.button);
        button.setOnClickListener(this);
    }

    @Override
    public void onClick(View arg0) {
        dialog.dismiss();
    }

}

activity布局文件

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="${relativePackage}.${activityClass}" >

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:onClick="showDialog"
        android:text="@string/hello_world" />

RelativeLayout>

自定义dialog

package com.example.dialogdemo;

import android.app.Dialog;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.view.Gravity;
import android.view.Window;

public class MyDialog extends Dialog {

    public MyDialog(Context context) {
        super(context);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        Window window = getWindow();
        window.setBackgroundDrawable(new ColorDrawable(0xFFFFFF));
        window.setGravity(Gravity.BOTTOM);
        window.setWindowAnimations(R.style.mystyle);
    }
}

dialog布局文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FFFFFF"
    android:gravity="center"
    android:orientation="vertical" >

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="close" />

LinearLayout>

style代码

动画代码
anim目录下 dialog_enter.xml

<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="600"
        android:fromYDelta="100%p" />

set>

anim目录下 dialog_exit.xml

<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="600"
        android:toYDelta="100%p" />

set>

ok完成了
点击demo下载

效果图