深入Activity的作业完成

Posted 2020-09-12 要加伟哥

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喜闻乐见也是我最会的布局阶段

    <EditText
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="150dp"
    android:hint="@string/EditTextname"
    android:textColorHint="#ff3"
    android:gravity="center"
    android:textColor="#ff0033"
    android:id="@+id/shuru"/>

        <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
            <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/button1"
            style="@style/text"
            android:onClick="onClick"
            android:id="@+id/button1"/>
            <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/button2"
            style="@style/text"
            android:id="@+id/button2"/>

        </LinearLayout>
        <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/TextViewname"
        android:gravity="center"
        android:id="@+id/show"
        android:textColor="#ff0033"
        style="@style/text"
        android:onClick="onClick"/>
    </LinearLayout>

string.xml文件的实现

    <resources>
    <string name="app_name">Activity</string>
    <string name="button1">进入评估</string>
    <string name="button2">退出</string>
    <string name="EditTextname">请输入姓名</string>
    <string name="TextViewname">评估结果</string>
    <string name="button3">有</string>
    <string name="button4">没有</string>
    
    </resources>




styles.xml文件的实现

    <resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
    <style name="text">
        <item name="android:textSize">20sp</item>
    </style>

    </resources>

然后再弄一个布局

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:textColor="#ff0033"
        android:id="@+id/show"/>
        <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
            <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/button3"
            style="@style/text"
            android:onClick="onClick"
            android:id="@+id/button3"/>
            <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/button4"
            style="@style/text"
            android:onClick="onClick"
            android:id="@+id/button4"/>

        </LinearLayout>

    </LinearLayout>

代码实现参考如下

public class  {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_tiaozhuan);
        Intent intent = getIntent();
        TextView tvshow=(TextView)findViewById(R.id.show);
        EditText etshuru=(EditText)findViewById(R.id.shuru);
        String name=intent.getStringExtra("name");
        tvshow.setText(name);
    }
    public void onClick(View view){
        switch (view.getId()){
            case R.id.button1:
            case R.id.button2:
                enter();
                break;
        }
    }

    private void enter() {
        EditText etshuru=(EditText)findViewById(R.id.shuru);
        String name =etshuru.getText().toString();
        Intent intent=new Intent(this,JiemianActivity.class);
        intent.putExtra("name",name+"同学：学习Android有没有信心？");
        startActivity(intent);

    }
}

public class  {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.jiemian2);
        Intent intent = getIntent();
        TextView tvshow=(TextView)findViewById(R.id.show);
        String name=intent.getStringExtra("name");
        tvshow.setText(name);
    }
    public void onClick(View view){
        switch (view.getId()){
            case R.id.button3:
                ruturn();
                break;
            case R.id.button4:
                ruturn2();
                break;
        }
    }


    private void ruturn() {
        Intent intent=new Intent(this,TiaozhuanActivity.class);
        Button btnbutton3=(Button)findViewById(R.id.button3);
        String name=btnbutton3.getText().toString();
        intent.putExtra("name","评估内容返回为："+name);
        startActivity(intent);
    }

    private void ruturn2() {
        Intent intent=new Intent(this,TiaozhuanActivity.class);
        Button btnbutton4=(Button)findViewById(R.id.button4);
        String name=btnbutton4.getText().toString();
        intent.putExtra("name","评估内容返回为："+name);
        startActivity(intent);
    }

}