安卓Andriod使用入门(十七)【卡片视图的形式管理Activity】

人生最终的价值在于觉悟和思考的能力，而不只是在于生存。——亚里士多德

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MainActivity.java代码:

package siso.aswitcher;import android.app.Activity;import android.app.Application;import android.content.Intent;import android.graphics.Color;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.MotionEvent;import android.view.View;import android.widget.Button;import android.widget.RelativeLayout;import android.widget.TextView;import siso.aslibrary.ActivitySwitcher;public class MainActivity extends AppCompatActivity {    static int index;    static int totalCount = 8;    static int[] bgColors = new int[] {            Color.parseColor("#92c8d0"),            Color.parseColor("#c4dcce"),            Color.parseColor("#cd7b91"),            Color.parseColor("#e5c5dc"),            Color.parseColor("#742a8d"),            Color.parseColor("#2eb2d8"),            Color.parseColor("#b9d84e"),            Color.parseColor("#35fe62")    };    private RelativeLayout relativeLayout;    private Button btnNext;    private TextView tvPage;    private ActivitySwitcher activitySwitcher;    private int tag;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        activitySwitcher = ActivitySwitcher.getInstance();        relativeLayout = (RelativeLayout) findViewById(R.id.relayout);        btnNext = (Button) findViewById(R.id.btn_next);        tvPage = (TextView) findViewById(R.id.tv_page);        relativeLayout.setBackgroundColor(bgColors[index]);        tag = index;        tvPage.setText("当前第" + (tag + 1) + "页" );        if (index == totalCount - 1) {            btnNext.setText("退出程序");        }        btnNext.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                if (++index > totalCount - 1) {                    activitySwitcher.exit();                } else {                    startActivity(new Intent(MainActivity.this, MainActivity.class));                }            }        });        activitySwitcher.setOnActivitySwitchListener(new ActivitySwitcher.OnActivitySwitchListener() {            @Override            public void onSwitchStarted() {}            @Override            public void onSwitchFinished(Activity activity) {                if (activity instanceof MainActivity) {                    MainActivity mainActivity = (MainActivity) activity;                    MainActivity.index = mainActivity.getTag();                }            }        });    }    @Override    public boolean dispatchTouchEvent(MotionEvent ev) {        activitySwitcher.processTouchEvent(ev);        return super.dispatchTouchEvent(ev);    }    @Override    public void onBackPressed() {        MainActivity.index = tag - 1 <= 0 ? 0 : tag - 1;        activitySwitcher.finishSwitch(this);    }    public int getTag() {        return tag;    }}

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MyApplication.java代码:

package siso.aswitcher;import android.app.Application;import siso.aslibrary.ActivitySwitcher;public class MyApplication extends Application {    @Override    public void onCreate() {        super.onCreate();        ActivitySwitcher.getInstance().init(this);    }}

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AndroidManifest.xml内容:

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="siso.aswitcher">    <application        android:name=".MyApplication"        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <activity android:name=".MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest>

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Andriod 库项目结构:

项目运行结果如图:

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