七寸屏幕 dp*dp

根据引用\[3\]中的信息，假设手机屏幕宽度是screenWidthIn英寸，手机屏幕宽有screenWidthPx个像素点，那么像素密度ppi为screenWidthPx / screenWidthIn。所以，七寸屏幕的宽度可以用以下公式计算：7英寸 x 160 dp/in = 1120 dp。所以，七寸屏幕的宽度是1120 dp。
#### 引用[.reference_title]
- *1* [dpi，分辨率，屏幕尺寸，dp，px，dip](https://blog.csdn.net/Goals1989/article/details/123872777)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^koosearch_v1,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* *3* [屏幕适配：dp、px、ppi、sp、手机尺寸和分辨率之间的关系](https://blog.csdn.net/aa971644/article/details/77583961)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^koosearch_v1,239^v3^insert_chatgpt"}} ] [.reference_item]
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